Work Package 6:Performance Specification

Ian McCrea

Main Aims• Revisit the Performance Specification produced in the FP6 Design

Study stage to take account of the Design Study findings and incorporate any ideas which have emerged since the end of the Design Study (Task 6.1).

• Produce a handbook of measurement principles, setting out how the system performance can be optimised by the application of innovative concepts in signal processing, coding, data handling and data analysis, which will be used thereafter as a framework for software and experiment development in EISCAT_3D (Task 6.2).

• Update and maintain the Performance Specification so that it provides a continuing resource for all of the technical work packages to determine details of acceptable system performance and hence define their required outputs (Task 6.3).

What does this really mean?

• WP6 is the most important work package, because...– The PSD describes what we want to

build–WP6 interacts with all WPs and binds

their work into a coherent vision– It will summarise what we want to build

and how!

Who is involved?

• Total Effort: 34 months– EISCAT: 4 months– Oulu (SGO): 28 months– STFC (RAL): 2 months– Frank Lind (TAC chair)– Tom Grydeland, Other TAC members– All project participants....

• Duration: Month 1 to 48

Milestones and Deliverables

• Month 6: – Initial version of the Performance

Specification Document (D6.1)– Initial version of Measurement Principles

Handbook (D6.2)

• Month 12:– Next version of PSD, consistent with

Science Case and Measurement Principles Handbook (D6.3)

Milestones and Deliverables

• Month 24– Second annual release of the PSD (D6.4)

• Month 36– Third annual release of the PSD (D6.5)

• Month 48– Final version of the PSD (D6.6)– Final version of the measurement principles

handbook (D6.7)

Progress so far....

• First version of Measurement Principles Handbook on course (Markku reported yesterday)

• Performance Specification Document hardly started yet– Structure on the web– Not one document but three!

A: Concept Document1 Introduction2 EISCAT 3D : A Digital Geospace Radar Array3 The Most Science for the Aperture4 Science as a Service to Society5 Federated Ownership and Involvement6 Affordable Construction and Operation Costs7 Clear Paths for Growth in Capability8 Minimum Barriers to Innovation9 Time as the Most Crucial Resource10 The User Interface is the Instrument11 Simplicity Wherever Possible or Uncertain12 Flexibility and Adaptability Before Perfection13 Production Quality Implementations14 Open Hardware and Software15 Build to Last, Inspire, and Teach16 Into the Future : Beyond EISCAT 3D

B: System Design Document

• Detailed design philosophy document• Facilitates communication between scientists,

engineers and other team members• Accessible to all project participants• Defines level at which system choices and trade-

offs can be made• 65 sections, covering all aspects of system design• Scope to re-use many elements from FP6 study• Much new material (and new thinking needed)• Will incorporates elements from all the technical

work packages.

C: Engineering Specification Document

How to actually build the radar.......

1: Introduction2: Engineering architecture3: Radar array4: Radar site architecture5: Receive antenna array elements6: Transmit antenna array elements7: Array group architecture8: Array group user interface9: Software radar system10: Production signal processing chains11: Data flow and management12: Virtual observatory13: Radar support infrastructure

Summary

• Very challenging work package• Critical to success of the project• Good start on the measurement

handbook• Too slow start on the PSD• Effort probably underestimated• Will need input from all PP participants• Includes work beyond the PP activities