NASA’s SDR Standard: Space Telecommunications Radio System
30
1 NASA’s SDR Standard: Space Telecommunications Radio System 5th Annual Software Radio Summit Presented by: Richard C. Reinhart and Sandra K. Johnson NASA’s John H. Glenn Research Center Cleveland Ohio February 21, 2007
Transcript of NASA’s SDR Standard: Space Telecommunications Radio System
1
NA
SA’s
SD
R S
tand
ard:
Sp
ace
Tele
com
mun
icat
ions
Rad
io S
yste
m
5th
Ann
ual S
oftw
are
Rad
io S
umm
it
Pre
sent
ed b
y:
Ric
hard
C. R
einh
art a
nd S
andr
a K
. Joh
nson
NA
SA’s
Joh
n H
. Gle
nn R
esea
rch
Cen
ter
Cle
vela
nd O
hio
Febr
uary
21,
200
7
Abs
trac
t –no
t par
t of p
rese
ntat
ion
A s
oftw
are
defin
ed ra
dio
(SD
R) a
rchi
tect
ure
used
in s
pace
-bas
ed p
latfo
rms
prop
oses
to
stan
dard
ize
certa
in a
spec
ts o
f rad
io d
evel
opm
ent s
uch
as in
terfa
ce d
efin
ition
s, fu
nctio
nal
cont
rol a
nd e
xecu
tion,
and
app
licat
ion
softw
are
and
firm
war
e de
velo
pmen
t. N
AS
A h
as
char
ted
a te
am to
dev
elop
an
open
sof
twar
e de
fined
radi
o ha
rdw
are
and
softw
are
arch
itect
ure
to s
uppo
rt N
AS
A m
issi
ons
and
dete
rmin
e th
e vi
abilit
y of
an
Age
ncy-
wid
e S
tand
ard.
A d
raft
conc
ept o
f the
pro
pose
d st
anda
rd h
as b
een
rele
ased
and
dis
cuss
ed
amon
g or
gani
zatio
ns in
the
SD
R c
omm
unity
. A
ppro
pria
te le
vera
ging
of t
he J
TRS
SC
A,
OM
G’s
SW
Rad
ioA
rchi
tect
ure
and
othe
r asp
ects
are
con
side
red.
A s
tand
ard
radi
o ar
chite
ctur
e of
fers
pot
entia
l val
ue b
y em
ploy
ing
com
mon
wav
efor
m
softw
are
inst
antia
tion,
ope
ratio
n, te
stin
g an
d so
ftwar
e m
aint
enan
ce. W
hile
sof
twar
e de
fined
radi
os o
ffer g
reat
er fl
exib
ility,
they
als
o po
ses
chal
leng
es to
the
radi
o de
velo
pmen
t fo
r the
spa
ce e
nviro
nmen
t in
term
s of
siz
e, m
ass
and
pow
er c
onsu
mpt
ion
and
avai
labl
e te
chno
logy
. A
n S
DR
arc
hite
ctur
e fo
r spa
ce m
ust r
ecog
nize
and
add
ress
the
cons
train
ts
of s
pace
flig
ht h
ardw
are,
and
sys
tem
s al
ong
with
flig
ht h
erita
gean
d cu
lture
.N
AS
A is
act
ivel
y pa
rtici
patin
g in
the
deve
lopm
ent o
f tec
hnol
ogy
and
stan
dard
s re
late
d to
so
ftwar
e de
fined
radi
os.
As
NA
SA
con
side
rs a
sta
ndar
d ra
dio
arch
itect
ure
for s
pace
co
mm
unic
atio
ns, i
nput
and
coo
rdin
atio
n fro
m g
over
nmen
t age
ncie
s,th
e in
dust
ry,
acad
emia
, and
sta
ndar
ds b
odie
s is
key
to a
suc
cess
ful a
rchi
tect
ure.
The
uni
que
aspe
cts
of s
pace
requ
ire th
orou
gh in
vest
igat
ion
of re
leva
nt te
rres
trial
tech
nolo
gies
pro
perly
ad
apte
d to
spa
ce. T
he ta
lk w
ill de
scrib
e N
AS
A’s
cur
rent
effo
rt to
inve
stig
ate
SDR
ap
plic
atio
ns to
spa
ce m
issi
ons
and
a br
ief o
verv
iew
of a
can
dida
te a
rchi
tect
ure
unde
r co
nsid
erat
ion
for s
pace
bas
ed p
latfo
rms.
Ove
rvie
w
•C
omm
unic
atio
ns T
echn
olog
y at
Gle
nn R
esea
rch
Cen
ter
•M
issi
on D
river
s an
d A
pplic
atio
ns fo
r SD
R
and
SD
R O
pen
Arc
hite
ctur
e
•N
AS
A’s
SD
R R
efer
ence
Arc
hite
ctur
e
•R
elat
ions
hip
amon
g S
tand
ards
Bod
ies
–N
AS
A, O
MG
, SD
RF,
IEE
E, J
TRS
•S
TRS
Tes
t-bed
•C
oncl
udin
g R
emar
ks
4
Gle
nn R
esea
rch
Cen
ter
Com
mun
icat
ions
Tec
hnol
ogy
Ove
rvie
w
GRC
Aer
ospa
ce C
omm
unic
atio
ns
•D
evel
op n
ext g
ener
atio
n sp
ace
com
mun
icat
ion
syst
ems
and
netw
orki
ng
tech
nolo
gies
for N
AS
A M
issi
ons
and
to e
nhan
ce N
AS
A’s
Spa
ce C
omm
unic
atio
ns
Infra
stru
ctur
e.–
Sof
twar
e R
adio
/Dig
ital C
omm
unic
atio
ns–
Ant
enna
s (h
igh
gain
dep
loya
ble,
ste
erab
le/d
irect
iona
l arr
ays)
–P
ower
Am
plifi
ers
–Sy
stem
Arc
hite
ctur
es, N
etw
orki
ng, a
nd A
naly
sis
•D
evel
op c
omm
unic
atio
n an
d ne
twor
king
sys
tem
s te
chno
logi
es to
enh
ance
the
Nat
iona
l Airs
pace
Sys
tem
.
Spac
e N
etw
ork
Inte
rfac
e C
ard
Sim
ulat
ion
and
Mod
elin
g
Flig
ht E
xper
imen
ts
Cap
abili
ties
Faci
litie
s/Te
stbe
ds/V
alid
atio
n
•Le
arje
t•
DC
-8•
757
9072
5436
180
1836
5472
9060575451484542393633302724211815129630
Co-p
ol -
Expe
rimen
tCr
oss-
pol -
Exp
erim
ent
The
oret
ical
Co-
pol
Far-
Fiel
d A
ngle
-D
egre
es
Relative Power -dB GaA
s M
MIC
Ka-
Ban
d Ph
ased
Arr
ay
Ferr
oele
ctric
Sc
anni
ng
Ref
lect
arra
y A
nten
na
Aer
o Ph
ased
Arr
ay
Hig
h Sp
eed
mod
ems
and
spec
ializ
ed d
igita
l har
dwar
e Cas
sini
TW
TA
AC
TS S
atel
lite
Ant
enna
Ran
ge
Labo
rato
ries
Mob
ile T
est P
latfo
rms
Ant
enna
s, O
ptic
al
and
RF
devi
ces
Dig
ital C
omm
unic
atio
nsSo
ftwar
e D
efin
ed R
adio
s
Pow
er A
mpl
ifier
s &
El
ectr
onic
Dev
ices
Net
wor
k &
Arc
hite
ctur
es•
Spac
e &
Aer
o Sy
stem
A
rchi
tect
ures
•Sy
stem
s A
naly
sis
•Te
ch A
sses
smen
ts
GRC
Aer
ospa
ce C
omm
unic
atio
nsRe
sear
ch &
Tec
hnol
ogy
Syst
ems
Ana
lysi
s
7
Mis
sion
Driv
ers
and
App
licat
ions
fo
r SD
R
and
SD
R O
pen
Arc
hite
ctur
e
8
Eart
h Lo
cal N
etw
ork
Mar
tian
Loca
l N
etw
ork
Luna
r Loc
al
Net
wor
k
Mar
tian
Trun
kLu
nar
Trun
k
L1/L
2
Indi
vidu
alSp
acec
raft
Con
nect
ions
Futu
re S
pace
Com
mun
icat
ions
Arc
hite
ctur
eA
Net
wor
k of
Net
wor
ks
Mis
sion
Typ
es
Cre
wed
Veh
icle
s•
Tran
spor
t Veh
icle
s•
Spa
ce S
tatio
ns/O
utpo
sts
•C
rew
Act
ivity
(i.e
. EV
A)
Spa
cecr
aft L
inks
•Sc
ienc
e S
atel
lites
•O
rbiti
ng R
elay
Sat
ellit
es
Surfa
ce R
adio
s•
Rov
ers
•Sc
ienc
e E
lem
ents
•EV
A
Oth
er…
•La
unch
Veh
icle
s•
Sub
-Orb
ital V
ehic
les
•G
roun
d S
tatio
ns
Tech
nolo
gy to
mee
t N
ASA
’s C
omm
unic
atio
n N
eeds
•O
bjec
tive:
Prov
ide
flexi
ble
and
evol
vabl
e sy
stem
s to
cha
nge
the
way
sp
ace
mis
sion
s de
velo
p an
d op
erat
e sp
ace
tran
scei
vers
for
com
mun
icat
ions
, nav
igat
ion
and
netw
orki
ng.
–B
e us
able
acr
oss
mos
t NA
SA
mis
sion
type
s
–D
ecre
ase
deve
lopm
ent t
ime
and
cost
–Ac
com
mod
ate
adva
nces
in te
chno
logy
with
min
imal
rew
ork
–A
dapt
able
to e
volv
ing
requ
irem
ents
–E
nabl
e ov
er th
e ai
r int
erop
erab
ility
with
exi
stin
g as
sets
–Le
vera
ge e
xist
ing
or d
evel
opin
g st
anda
rds,
reso
urce
s, a
nd e
xper
ienc
e (s
tate
-of-a
rt an
d st
ate-
of-p
ract
ices
)
•So
lutio
n:So
ftwar
e de
fined
radi
o ba
sed
on a
com
mon
, ope
n ar
chite
ctur
e
10
Driv
ers
for N
AS
A S
pace
SD
R
•R
adia
tion
Suita
ble
Proc
essi
ng–
Less
cap
able
than
terr
estri
al, o
ften
lagg
ing
by a
gen
erat
ion
or tw
o.
–Li
mits
bot
h th
e fo
otpr
int a
nd c
ompl
exity
of t
he in
fras
truct
ure.
•Sp
acec
raft
Res
ourc
e C
onst
rain
ts–
Spac
ecra
ft si
ze, w
eigh
t, an
d po
wer
lim
itatio
ns o
n sp
acec
raft.
–
Ope
n ar
chite
ctur
e ov
erhe
ad m
ust b
e ba
lanc
ed a
gain
st th
ese
spac
ecra
ft co
nstra
ints
.
•R
elia
bilit
y–
Des
igne
d to
pre
vent
sing
le p
oint
failu
res.
–M
anne
d m
issi
ons h
ave
high
relia
bilit
y re
quire
men
ts, e
spec
ially
for s
afet
y cr
itica
l app
licat
ions
.
•Sp
ecia
lized
Sig
nal P
roce
ssin
g A
bstra
ctio
n–
Wav
efor
ms t
o be
dep
loye
d on
spec
ializ
ed h
ardw
are
(FPG
As,
ASI
CS)
•Sp
ace
Wav
efor
ms
–D
ata
rate
s ran
ge fr
om lo
w (k
bps)
to h
igh
(Gbp
s).
Freq
uenc
ies f
rom
low
(MH
z) to
(GH
z)
•Sm
all S
pace
Mar
ket
11
Tim
elin
e of
Ope
n A
rchi
tect
ure
SD
R B
enef
its
Bef
ore
and
Afte
r Lau
nch
Des
ign
Des
ign
Build
Build
Flig
ht
Flig
ht
Qual
Q
ual
&
&
Acc
ept
Acc
ept
S/W
S/W
Tes
ting
Tes
ting
Pre
Pre--
flig
ht
flig
ht
Tes
ting
Tes
ting
Launch
Launch
On
On-- o
rbit
orb
it
Sys
tem
Sys
tem
U
pgra
de
Upgra
de
On
On--
Orb
it
Orb
it
Rep
air
Rep
air
Gro
und
Gro
und
Sys
tem
Sys
tem
upgra
de
upgra
de
Etc
Etc
Soft
war
e re
use
acr
oss
Soft
war
e re
use
acr
oss
pla
tform
s sh
ort
ens
pla
tform
s sh
ort
ens
test
ing c
ycle
and
test
ing c
ycle
and
reduce
s qual
ific
atio
n
reduce
s qual
ific
atio
n
tim
e an
d c
ost
stim
e an
d c
ost
s
Com
mon
Com
mon
arch
itec
ture
ar
chitec
ture
sh
ort
ens
short
ens
des
ign a
nd
des
ign a
nd
dev
elopm
ent
dev
elopm
ent
tim
e an
d
tim
e an
d
reduce
s co
st.
re
duce
s co
st.
Allo
ws
Allo
ws
tech
nolo
gy
tech
nolo
gy
inse
rtio
n f
or
inse
rtio
n f
or
pla
nned
pla
nned
obso
lesc
ence
.obso
lesc
ence
.
Ven
dor
indep
enden
ce low
ers
Ven
dor
indep
enden
ce low
ers
upgra
de
cost
and im
pro
ves
upgra
de
cost
and im
pro
ves
capab
ility
.ca
pab
ility
.O
nO
n-- o
rbit u
pgra
des
to
orb
it u
pgra
des
to
inse
rt n
ew c
apab
ilities
lik
ely
due
inse
rt n
ew c
apab
ilities
lik
ely
due
to m
odula
r, o
pen
des
ign.
to m
odula
r, o
pen
des
ign.
Cru
ise/
Cru
ise/
Dep
loy
Dep
loy
Po
ten
tial to
ad
d y
ears
to
th
e u
sefu
l li
fe o
f P
ote
nti
al to
ad
d y
ears
to
th
e u
sefu
l li
fe o
f d
ep
loyed
hard
ware
by r
ed
uci
ng
mis
sio
n r
isk
dep
loyed
hard
ware
by r
ed
uci
ng
mis
sio
n r
isk
12
Ope
n A
rchi
tect
ure
for S
pace
, W
hy n
ow?
Tech
nolo
gy a
dvan
cem
ents
in s
igna
l pr
oces
sing
har
dwar
e m
ake
it po
ssib
le fo
r sp
ace
base
d re
conf
igur
able
pla
tform
s
Tech
nolo
gy a
llow
s us
e of
mor
e so
ftwar
e in
tens
ive
syst
ems
for c
omm
unic
atio
n an
d na
viga
tion
func
tions
.
Sta
ndar
d ar
chite
ctur
es fo
r SD
R e
mer
ging
JTR
S, O
MG
, SD
R F
orum
, etc
….
TRL
Adv
ance
men
t of S
DR
sin
Spa
ce
Arc
hite
ctur
e se
rves
as
a fra
mew
ork
for
com
mon
ality
/inte
rope
rabi
lity
amon
g su
pplie
rs to
get
Age
ncy
wid
e be
nefit
am
ong
futu
re ra
dio
deve
lopm
ents
SD
Rs
+ S
tand
ard
Arc
hite
ctur
e =
Sof
twar
e R
euse
Sign
al P
roce
ssin
g A
dvan
cem
ents
Softw
are/
Firm
war
e
Emer
ging
Ope
n A
rchi
tect
ures
New
Rad
io T
echn
olog
y
Com
mon
ality
/Te
chno
logy
Inse
rtion
Ada
ptab
le O
pera
tions
, Fau
lt R
ecov
ery,
Fle
xibi
lity
Key
Fin
ding
s an
d R
ecom
men
datio
ns to
NA
SA
’s
Spa
ce C
omm
unic
atio
n A
rchi
tect
ure
Wor
king
Gro
up
•R
ecog
nize
that
SD
Rs
will
pla
y a
key
role
in fu
ture
NA
SA m
issi
ons
–S
DR
tech
nolo
gy d
emon
stra
ted
in fl
ight
test
ing
and
oper
atio
ns–
Toda
y’s
spac
e ra
dios
typi
cally
hav
e si
gnifi
cant
func
tiona
lity
impl
emen
ted
in
softw
are
–S
tand
ardi
zed
SD
Rs
may
pro
vide
cos
t sav
ings
ove
r tim
e an
d m
ultip
le p
roje
cts
•H
owev
er, b
usin
ess
case
nee
ds to
be
com
pellin
g•
Com
mon
ality
sho
uld
redu
ce d
evel
opm
ent r
isk
and
NR
E c
osts
•A
dopt
the
STR
S St
anda
rd a
s a
refe
renc
e H
W a
nd S
W S
DR
Sta
ndar
d an
d th
e as
soci
ated
Des
ign
Ref
eren
ce Im
plem
enta
tions
as
such
–
Pro
mot
e a
broa
d en
viro
nmen
t of a
ccep
tanc
e an
d ev
olut
ion
of th
e S
tand
ard
•Ph
ase
in c
ompl
ianc
e to
the
STR
S St
anda
rd o
ver t
ime
–E
ncou
rage
, but
do
not r
equi
re, c
ompl
ianc
e to
ear
ly v
ersi
ons
of th
e S
tand
ard
–Th
e S
TRS
Sta
ndar
d w
ill b
e fle
xibl
e an
d w
ill b
e al
low
ed to
evo
lve
as a
ppro
pria
te
•Su
ppor
t tec
hnol
ogie
s re
quire
d to
impr
ove
SDR
per
form
ance
for
spac
e–
radi
atio
n m
itiga
tion,
pro
cess
or th
roug
hput
, FP
GA
s, A
DC
rate
s, m
emor
y, e
tc.
SD
R S
tand
ards
Coo
rdin
atio
n
•O
rgan
izat
ions
pur
suin
g S
DR
Sta
ndar
ds–
Sof
twar
e C
omm
unic
atio
ns A
rchi
tect
ure
(SC
A:J
PE
O/J
TRS
)•S
peci
aliz
ed H
ardw
are
Pro
cess
ors
Ext
ensi
on to
the
SC
A (S
HP
E:J
PO
)–
PIM
/PS
M F
or S
oftw
are
Rad
io C
ompo
nent
s (P
2SR
C:O
MG
)–
P19
00 (I
EE
E E
MC
Soc
iety
)–
Spa
ce T
elec
omm
unic
atio
ns R
adio
Sys
tem
(STR
S:N
ASA)
•N
AS
A p
artic
ipat
es in
man
y of
the
SD
R S
tand
ard
activ
ities
in v
ario
us w
ays
–A
Spa
ce W
orki
ng G
roup
has
bee
n es
tabl
ishe
d w
ithin
the
SD
R F
orum
–Fe
edba
ckon
STR
S v
1.0
draf
t des
crip
tion
docu
men
t rel
ease
d in
Jan
06 is
in p
roce
ss
•N
AS
A’s
STR
S c
onsi
dere
d as
pect
s of
SC
A a
nd e
arly
ver
sion
s of
SW
RA
DIO
.–
NA
SA
will
striv
e to
leve
rage
com
mer
cial
sta
ndar
ds a
s th
ey m
eet t
he re
quire
men
ts o
f sp
ace
mis
sion
s
•N
AS
A w
ill co
ntin
ue to
mon
itor S
CA
, OM
G, a
nd P
1900
adv
ance
men
ts
–N
AS
A in
vest
igat
ing
the
appl
icat
ion
of c
urre
nt S
WR
AD
IO P
IM/P
SM
for S
oftw
are
Rad
io C
ompo
nent
s in
con
junc
tion
with
SD
R F
orum
, Spa
ce W
orki
ng G
roup
15
NA
SA
’s S
DR
Ref
eren
ce A
rchi
tect
ure
for S
pace
16
STR
S S
DR
Sys
tem
Con
text
Payl
oad
Flig
ht C
ompu
ter
Spac
e Tr
ansc
eive
r/Rad
io
Payl
oad
Flig
ht C
ompu
ter
Wav
efor
ms/
Appl
icat
ions
Rad
io C
omm
and
Serv
ices
STR
S Ar
chite
ctur
eIn
stan
tiatio
n
Gro
und
Ope
ratio
ns C
ente
r
Sate
llite
The
radi
o in
terfa
ces
with
sev
eral
act
ors
17
Cus
tom
Arc
hite
ctur
e H
ardw
are
Rep
rese
ntat
ion
•Ty
pica
lly c
ompo
nent
-bas
ed
repr
esen
tatio
n•
Cos
t/pow
er e
ffici
ent i
mpl
emen
tatio
n–
Man
agin
g so
ftwar
e lim
ited
to
spec
ific
and
few
func
tions
•B
uilt
to m
issi
on re
quire
men
ts•
Leve
rage
yea
rs o
f spa
ce fl
ight
he
ritag
e•
Des
igne
rs a
llow
ed to
use
cus
tom
in
terfa
ces
as n
eces
sary
–Te
stin
g an
d su
ppor
t cos
t inc
reas
e•
Pro
prie
tary
impl
emen
tatio
n an
d sw
upgr
ades
link
ed to
spe
cific
ven
dor
•La
cks
plan
ned
softw
are/
desi
gn
reus
e am
ong
diffe
rent
ven
dors
and
di
ffere
nt N
AS
A o
rgs
•V
endo
rs h
olds
mod
ule/
func
tiona
l re
posi
tory
for r
espe
ctiv
e pr
oduc
ts
inst
ead
of N
AS
A.
Prop
rieta
ry, C
lose
d H
ardw
are
Arc
hite
ctur
e Ex
ampl
e
18
STR
S L
ayer
ed S
oftw
are
Mod
el
•W
avef
orm
App
licat
ions
–Is
olat
e fro
m h
ardw
are
–U
ses
PO
SIX
AP
Is to
acc
ess
RTO
S–
Use
s S
TRS
AP
Is to
acc
ess
STR
S in
frast
ruct
ure
–Pr
omot
e w
avef
orm
por
tabi
lity/
laye
ring
•H
igh
Leve
l Ser
vice
s–
Con
trol w
avef
orm
–M
onito
r wav
efor
m (Q
oS)
•ST
RS
Infr
astr
uctu
re–
Syst
em m
anag
emen
t–
Dev
ice
cont
rol
–D
ata
trans
fer
–O
ptim
ized
for p
latfo
rm•
RTO
S–
Rea
l-Tim
e O
pera
ting
Sys
tem
(CO
TS)
–Sy
stem
impl
emen
ting
a su
bset
of P
OS
IX
–N
etw
ork
Supp
ort
•B
SP (B
oard
Sup
port
Pac
kage
)–
Har
dwar
e A
bstra
ctio
n La
yer (
HAL
) –
Driv
ers
•H
ardw
are
–H
ardw
are
com
mun
icat
ions
equ
ipm
ent
(e.g
. FP
GA
, DS
P, A
to D
, and
D to
A)
–H
W In
terfa
ce D
efin
ition
–Fa
cilit
ate
HW
tech
in
serti
on fr
om m
ultip
le v
endo
rs (e
.g. I
CD
)
0103
30_G
RC
_SO
CTP
_Mid
-term
_Rev
iew
.pptST
RS O
pen
Arc
hite
ctur
e H
ardw
are
Repr
esen
tatio
n
Dat
a
Clo
ck
Con
trol
Mod
ules
Gen
eral
Pur
pose
Pro
cess
ing
Mod
ule
(GP
M)
Spe
cial
ized
P
roce
ssin
g M
odul
e (S
PM
)
Rad
ioFr
eque
ncy
Mod
ule
(RFM
)
Gro
und
Test
Exte
rnal
Con
nect
ions
Dat
a
Con
trol
Inte
rnal
Con
nect
ions
Clo
ck
Rad
ioFu
nctio
n
Sys
tem
Bus
Exte
rnal
Inte
rfac
e
20
SD
R/S
TRS
Har
dwar
e Fu
nctio
nal D
iagr
am
text
text
text
Dat
a Fo
rmat
ting
Spa
cecr
aft
Dat
a In
terfa
ce
Clo
ck
Dis
tribu
tion
Tran
smit
RF
Dig
ital t
o A
nalo
g
Gen
eral
Pro
cess
ing
Mod
ule
(GPM
)
Gen
eral
Pur
pose
Pro
cess
or
Hos
t/TT&
CIn
terfa
ce
Gro
und
Test
In
terfa
ce
Low
Spe
ed
Sig
nal
Pro
cess
ing
Per
sist
ent M
emor
y
RF
Mod
ule
(RFM
)
Rad
io
Con
figur
atio
n &
Sys
tem
C
ontro
lW
ork
Are
a M
emor
y
Hig
h S
peed
Dig
ital S
igna
l P
roce
ssin
g
Sign
al P
roce
ssin
g M
odul
e (S
PM)
Ant
enna
Inte
rface
Clo
ck
Inte
rface
Ana
log
to
Dig
ital
Rec
eive
RF
Ant
enna
C
ontro
l In
terfa
ce
Ope
ratin
gEn
viro
nmen
t
Wav
efor
m /
Appl
icat
ion
Sys
tem
C
ontro
l
Var
iabl
e G
ain/
Freq
uenc
yTe
st &
S
tatu
s
Test
&
Sta
tus
Dat
a B
uffe
r/S
tora
ge W
avef
orm
21
SD
R/S
TRS
Har
dwar
e Fu
nctio
nal D
iagr
am
text
text
text
Dat
a Fo
rmat
ting
Spa
cecr
aft
Dat
a In
terfa
ce
Clo
ck
Dis
tribu
tion
Tran
smit
RF
Dig
ital t
o A
nalo
g
Gen
eral
Pro
cess
ing
Mod
ule
(GPM
)
Gen
eral
Pur
pose
Pro
cess
or
Hos
t/TT&
CIn
terfa
ce
Gro
und
Test
In
terfa
ce
Low
Spe
ed
Sig
nal
Pro
cess
ing
Per
sist
ent M
emor
y
RF
Mod
ule
(RFM
)
Rad
io
Con
figur
atio
n &
Sys
tem
C
ontro
lW
ork
Are
a M
emor
y
Hig
h S
peed
Dig
ital S
igna
l P
roce
ssin
g
Sign
al P
roce
ssin
g M
odul
e (S
PM)
Ant
enna
Inte
rface
Clo
ck
Inte
rface
Ana
log
to
Dig
ital
Rec
eive
RF
Ant
enna
C
ontro
l In
terfa
ce
Ope
ratin
gEn
viro
nmen
t
Wav
efor
m /
Appl
icat
ion
Sys
tem
C
ontro
l
Var
iabl
e G
ain/
Freq
uenc
yTe
st &
S
tatu
s
Test
&
Sta
tus
Dat
a B
uffe
r/S
tora
ge W
avef
orm
Gen
eral
Pro
cess
ing
Mod
ule
–co
nsis
ts o
f the
gen
eral
pur
pose
pr
oces
sor,
appr
opria
te m
emor
y,
spac
ecra
ft bu
s (e.
g. M
ILST
D-
1553
) , in
terc
onne
ctio
n bu
s (e.
g.
PCI)
, and
the
com
pone
nts t
o su
ppor
t the
con
figur
atio
n of
the
radi
o.
Sign
al P
roce
ssin
g M
odul
e –
sign
al p
roce
ssin
g us
ed to
han
dle
the
trans
form
atio
n of
dig
ital
sign
als i
nto
data
pac
kets
. Com
pone
nts i
nclu
de
ASI
C’s
, FPG
A’s
, DSP
’s, m
emor
y, a
nd
conn
ectio
n fa
bric
/bus
(e.g
. PC
I, fle
x-fa
bric
)
RF
Mod
ule
–han
dles
the
RF
func
tiona
lity
to tr
ansm
its/re
ceiv
e th
e di
gita
l sig
nal.
Its a
ssoc
iate
d co
mpo
nent
s inc
lude
RF
switc
hes,
dipl
exer
, filt
ers,
LNA
sand
pow
er a
mpl
ifier
s.
22
text
text
text
Dat
a Fo
rmat
ting
Spa
cecr
aft
Dat
a In
terfa
ce
Clo
ck
Dis
tribu
tion
Tran
smit
RF
Dig
ital t
o A
nalo
g
Gen
eral
Pro
cess
ing
Mod
ule
(GPM
)
Gen
eral
Pur
pose
Pro
cess
or
Hos
t/TT&
CIn
terfa
ce
Gro
und
Test
In
terfa
ce
Low
Spe
ed
Sig
nal
Pro
cess
ing
Per
sist
ent M
emor
y
RF
Mod
ule
(RFM
)
Rad
io
Con
figur
atio
n &
Sys
tem
C
ontro
lW
ork
Are
a M
emor
y
Hig
h S
peed
Dig
ital S
igna
l P
roce
ssin
g
Sign
al P
roce
ssin
g M
odul
e (S
PM)
Ant
enna
Inte
rface
Clo
ck
Inte
rface
Ana
log
to
Dig
ital
Rec
eive
RF
Ant
enna
C
ontro
l In
terfa
ce
Ope
ratin
gEn
viro
nmen
t
Wav
efor
m /
Appl
icat
ion
HA
L Sys
tem
C
ontro
l
Var
iabl
e G
ain/
Freq
uenc
yTe
st &
S
tatu
s
Test
&
Sta
tus
Dat
a B
uffe
r/S
tora
ge W
avef
orm
AP
I
STR
S H
ardw
are
Func
tiona
l Dia
gram
Mod
ule
Inte
rfac
es a
bstra
ct a
nd d
efin
e th
e m
odul
e fu
nctio
nalit
y fo
r dat
a flo
w to
wav
efor
m c
ompo
nent
s. En
able
s m
ultip
le v
endo
rs to
pro
vide
diff
eren
t mod
ules
or a
dd m
odul
es to
exi
stin
g ra
dios
. El
ectri
cal i
nter
face
s, co
nnec
tor
requ
irem
ents
, and
phy
sica
l req
uire
men
ts a
re sp
ecifi
ed/p
ublis
hed
by th
e pl
atfo
rm p
rovi
der.HA
L A
PI is
pub
lishe
d so
that
sp
ecia
lized
HW
dev
elop
ed b
y m
ultip
le v
endo
rs c
an b
e in
tegr
ated
with
ano
ther
ven
dor’
s ST
RS
infr
astru
ctur
e.
Softw
are/
Firm
war
e A
bstra
ctio
n: L
ayer
s de
fine
inte
rfac
es b
etw
een
com
pone
nts,
sepa
ratin
g SW
/FW
from
HW
.
API
s sep
arat
e w
avef
orm
from
ope
ratin
g en
viro
nmen
t –en
ablin
g w
avef
orm
por
tabi
lity.
Test
& S
tatu
s on
eac
h m
odul
e
Man
agin
g So
ftwar
e ru
ns o
n G
PM
STRS
Sof
twar
e Ru
le S
et S
ampl
e
•Th
e A
PI l
ayer
shal
l con
sist
of p
ublis
hed
STR
S A
PIs
and
a d
efin
ed
subs
et o
f ind
ustry
sta
ndar
d P
OS
IX A
PIs
•Th
e S
TRS
infra
stru
ctur
esh
all i
mpl
emen
t the
STR
S A
PIs
and
sy
stem
man
agem
ent,
devi
ce c
ontro
l, da
ta tr
ansf
er fu
nctio
ns•
All
STR
S w
avef
orm
app
licat
ions
sha
ll us
e th
e S
TRS
AP
I sui
te to
in
stan
tiate
and
con
trol t
he w
avef
orm
func
tiona
lity
•Th
e S
TRS
AP
I pro
vide
s th
e in
terfa
ces
that
allo
w a
pplic
atio
ns to
be
inst
antia
ted
and
use
plat
form
ser
vice
s -t
hese
AP
Is a
lso
enab
le
com
mun
icat
ion
betw
een
wav
efor
m a
nd a
pplic
atio
n co
mpo
nent
s•
Ope
ratin
g en
viro
nmen
tcon
sist
s of
STR
S in
frast
ruct
ure,
real
tim
e O
S, b
oard
sup
port
pack
ages
, har
dwar
e ab
stra
ctio
n la
yers
•S
TRS
con
figur
atio
n fil
essh
all c
onta
in p
latfo
rm a
nd w
avef
orm
sp
ecifi
c in
form
atio
n to
allo
w c
usto
miz
atio
n of
inst
alle
d w
avef
orm
s.
–Th
e co
nfig
urat
ion
file
cont
ains
the
para
met
ric v
alue
s fo
r con
figur
able
co
mpo
nent
s as
wel
l as
filen
ames
for l
oada
ble
devi
ces
(FP
GA
, DS
P,
etc.
)
STRS
Ope
n A
rchi
tect
ure
Hig
hlig
hts
Har
dwar
e•
Mod
ule
defin
ition
s pr
ovid
ed to
org
aniz
e co
mm
on fu
nctio
ns•
Mod
ule
inte
rface
s ab
stra
cts
the
mod
ule
func
tiona
lity
for d
ata
flow
to w
avef
orm
co
mpo
nent
s–
Enab
le m
ultip
le v
endo
rs to
pro
vide
diff
eren
t mod
ules
or a
dd m
odul
es to
exi
stin
g ra
dios
.–
Prov
ide
com
mon
test
inte
rface
/pro
cedu
res
•H
ardw
are
Inte
rface
Def
initi
on (H
ID)
–Th
e el
ectri
cal i
nter
face
s, c
onne
ctor
requ
irem
ents
, and
phy
sica
l req
uire
men
ts a
re s
peci
fied
by th
e pl
atfo
rm p
rovi
der.
–H
ID s
hall
be p
ublis
hed
for e
ach
mod
ule
so 3
rd p
arty
dev
elop
ers
have
the
stru
ctur
e un
der w
hich
th
ey c
an d
evel
op n
ew m
odul
es
Softw
are
•La
yers
def
ine
inte
rface
s be
twee
n co
mpo
nent
s•
Cer
tain
laye
rs s
epar
ate
SW
from
SW
and
oth
er S
W fr
om H
W (i
.e. a
bstra
ct)
•AP
Is s
epar
ate
wav
efor
m fr
om o
pera
ting
envi
ronm
ent f
or w
avef
orm
por
tabi
lity/
reus
e•
The
STR
S In
frast
ruct
ure
will
use
the
HA
L in
form
atio
n to
initi
aliz
e th
e ha
rdw
are
driv
ers
such
that
the
cont
rol a
nd d
ata
mes
sage
s w
ill be
app
ropr
iate
ly d
eliv
ered
to th
e m
odul
e.–
Met
hod/
func
tion
used
, cal
ling
sequ
ence
, ret
urn
valu
es, a
n ex
plan
atio
n of
its
func
tiona
lity,
any
pr
econ
ditio
ns b
efor
e us
ing
the
met
hod/
func
tion,
and
the
stat
us a
fter u
sing
the
met
hod/
func
tion
–H
ardw
are
addr
ess
and
data
inte
rface
s, in
terru
pt in
put a
nd o
utpu
t, po
wer
con
nect
ions
, con
trol a
nd
data
line
s ne
cess
ary
to o
pera
te in
the
STR
S p
latfo
rm e
nviro
nmen
t(fir
mw
are
code
por
tabi
lity)
STR
S R
epos
itory
•C
olle
ctio
n of
har
dwar
e an
d so
ftwar
e m
odul
es, d
efin
ition
s, d
ocum
ents
for m
issi
on re
use
STR
S T
est-B
ed
010330_G
RC
_S
OC
TP
_M
id-t
erm
_R
evie
w.p
pt
ST
RS
In
teg
rati
on
Tes
t B
ed O
bje
ctiv
es
•E
va
lua
te r
eco
nfig
ura
ble
ra
dio
te
ch
no
log
y t
ha
t h
as p
ote
ntia
l to
me
et
the
co
mm
un
ica
tio
n n
ee
ds o
f N
AS
A
–M
ultip
le S
DR
s f
rom
industr
y to u
nders
tand v
ary
ing r
adio
arc
hitectu
re.
–E
ncoura
ge g
reate
r in
dustr
y p
art
icip
ation in t
he S
TR
S a
rchitectu
re
develo
pm
ent
effort
–F
ails
afe
opera
tion t
echniq
ues s
oftw
are
defined r
adio
technolo
gy
–D
em
onstr
ate
inte
ropera
bili
ty b
etw
een m
ultip
le S
DR
s
•P
rovid
e d
eve
lop
me
nt
an
d t
est
en
vir
on
me
nt
for
–S
TR
S A
rchitectu
re D
evelo
pm
ent
–R
efe
rence I
mple
menta
tions o
n s
pace-b
readboard
pla
tform
s
–W
avefo
rm a
nd a
pplic
ation d
evelo
pm
ent
•M
ove
so
ftw
are
am
on
g d
iffe
ren
t p
latf
orm
s t
o d
em
on
str
ate
so
ftw
are
ab
str
actio
n
•L
ab
ora
tory
va
lida
tio
n o
f C
on
Op
s
•S
TR
S C
om
plia
nce
Te
stin
g a
nd
flig
ht
rad
io v
alid
atio
n
010330_G
RC
_S
OC
TP
_M
id-t
erm
_R
evie
w.p
pt
ST
RS
Tes
tbed
Pla
tfo
rm a
nd
Wav
efo
rm D
evel
op
men
t P
lan
Fli
ght
radio
bre
adboar
ds
are
suppli
ed t
o N
AS
A
thro
ug
h S
pac
e A
ct A
gre
emen
ts.
Th
eir
incl
usi
on
in t
he
test
bed
do
es n
ot
infe
r an
en
do
rsem
ent.
010330_G
RC
_S
OC
TP
_M
id-t
erm
_R
evie
w.p
pt
ST
RS
SD
R T
est-
Bed
En
vir
on
men
t
Sim
ula
tion a
nd C
ontr
ol S
yste
m
Scen
ari
o C
on
tro
l an
d S
imu
latio
nT
imin
g
Schedulin
g
(via
ST
K)
Mis
sio
n P
hases
Radio
Phases
C3
I-B
ased
Ap
plicatio
ns
Voic
eV
ideo a
nd I
magin
g
Com
mands
Scie
nce D
ata
Pla
nnin
gV
ehic
le H
ealth a
nd S
tatu
s
Com
pute
r F
iles a
nd M
essagin
g
On
bo
ard
Sp
acecra
ft A
vio
nic
s E
mu
latio
n
Soft
ware
Defined R
adio
Bre
adboard
s
Sim
ula
te C
onste
llation E
lem
ents
.
Dem
onstrate
inte
ropera
bility
, re
configura
bility
,
opera
tions c
oncepts
...
Reconfigura
ble
Hard
ware
Pla
tform
s
-
obta
ined fro
m S
pace R
adio
Vendors
ISS
Lu
nar
Rela
y
Lu
nar
Su
rface E
lem
en
ts
(fu
ture
cap
ab
ility
)
Lu
nar
Ro
vers
Conste
llation W
avefo
rms
-
obta
ined fro
m S
pace R
adio
Vendors
and inte
rnal N
AS
A
TD
RS
GP
S
SS
CS
TB
D
Sate
llite
/
Gro
und S
yste
m E
mula
tor
TD
RS
Ka-b
an
d
TD
RS
S-b
an
d
Cro
sslin
k
Ch
an
nel
Sim
ula
tio
n
Testb
ed O
utp
ut
-O
pera
tions a
nd R
adio
Perf
orm
ance A
naly
sis
Reso
urc
es
Pow
er
Consum
ption
Mass
Mem
ory
Sig
nal P
rocessin
g
(M
IPS
, gate
s,
etc
.)
Op
era
tio
ns
O
ps C
oncept
/Requirem
ents
Evolu
tion
O
nboard
Configura
tion M
anagem
ent
M
ulti-M
ode
, M
ulti-C
hannel
R
angin
g,
Dopple
r com
pensation
C
om
munic
ation
/Nav A
pplic
ations
CL
V/C
aL
V
CE
V
Lu
nar
Ou
tpo
st
Perf
orm
an
ce
An
aly
sis
BE
R
Spectr
um
Availa
bility
Tim
ing
Off N
om
inal S
imu
latio
n a
nd
Reco
very
An
aly
sis
Sin
gle
Event
Upsets
Contingency W
avefo
rm
Fault R
ecovery
ST
RS
co
mp
lian
t
pla
tfo
rms
and
wav
efo
rms
010330_G
RC
_S
OC
TP
_M
id-t
erm
_R
evie
w.p
pt
SD
R &
ST
RS
Arc
hit
ectu
re C
on
clu
sio
ns
•R
eco
nfig
ura
ble
SD
R w
ill e
na
ble
ne
w m
issio
n c
on
ce
pts
–R
em
ote
/auto
nom
ous o
pera
tions
–F
utu
re c
ognitiv
e r
adio
s
•S
TR
S A
rch
ite
ctu
re p
rovid
es c
om
mo
na
lity a
mo
ng
re
co
nfig
ura
ble
SD
Rs
de
ve
lop
ed
by N
AS
A–
Pro
vid
es a
coord
inate
d m
eth
od a
cro
ss t
he a
gency t
o a
pply
SD
R t
echnolo
gy
–P
rogra
m/m
issio
n r
isk r
eduction
–A
llow
s t
echnolo
gy infu
sio
n
–R
educes v
endor
dependence
•S
TR
S A
rch
ite
ctu
re w
ill e
vo
lve
be
fore
be
co
min
g a
re
qu
ire
d S
tan
da
rd–
Wavefo
rm C
ontr
ol
–N
avig
atio
n,
Se
cu
rity
, N
etw
ork
ing
…
–B
usin
ess c
ase f
or
Sta
ndard
Arc
hitectu
re p
endin
g…
–Le
ve
rag
e b
est
asp
ects
of
DoD
’s J
TR
S S
CA
an
d in
du
str
y p
ractice
•E
xp
lora
tio
n V
isio
n w
ill p
rese
nt
ne
w o
pp
ort
un
itie
s t
o a
pp
ly S
DR
NA
SA
SD
R C
on
tact
In
form
atio
n
Pat
Eble
n
Chairm
an, S
oftw
are
Defined R
adio
Arc
hitectu
re T
eam
NA
SA
Headquart
ers
pat.eble
n@
nasa.g
ov
202-3
58-4
497
Ric
hard
Rein
hart
ST
RS
Manager,
Softw
are
Defined R
adio
Technolo
gie
s
Gle
nn R
esearc
h C
ente
r
richard
.c.r
ein
hart
@nasa.g
ov
216-4
33-6
588
Sandra
Johnson
ST
RS
Com
munic
ations S
yste
m L
ead, S
oftw
are
Defined R
adio
Technolo
gie
s
Gle
nn R
esearc
h C
ente
r
sandra
.k.johnson@
nasa.g
ov
216-4
33-8
016
