In-Flight Test Plan - CEOS WGCVsarcv.ceos.org/site_media/media/documents/Cuerda-_PAZ... ·...

Pag.: 1 30/10/2015

In-Flight Test Plan

PAZ Mission CALVAL Centre

Juan Manuel Cuerda Muñoz, Beatriz Gómez Miguel, Javier del Castillo Mena, Adolfo López Pescador, Nuria Gimeno Martínez, Nuria Casal Vázquez, Patricia Cifuentes Revenga, Marcos García

Rodríguez, María José González Bonilla.

PAZ Mission

Contents

Introduction CALVAL In-Flight Test Plan Objectives and Scope Approach Areas Data takes planning Conclusion

10/30/2015 Pag.: 2

PAZ Mission 3

INTRODUCTION

PNOTS SPANISH NATIONAL PLAN FOR EARTH OBSERVATION

Responsible for coordinated development of both systems Ground Segment location at INTA Torrejón headquarters PAZ Ground Segment Developer PAZ Calibration and Validation Centre

INGENIO OPTICAL

SATELLITE

PAZ RADAR SATELLITE

4

PAZ PROGRAM

INTA Ground Segment

INTA - Acceptation

DLR PSP

CalVal Tools IO

HISDESAT Space Segment

INSA G/S

Spanish Companies

INDRA - GMV - DEIMOS - INSA

PAZ

INTA CalVal Centre

5

FOS Flight Operation Segment PDGS Payload Data Ground Segment

G/S Ground Station

ARF Acquisition

Routing Facility M&C

Monitoring and Control

SMC Secure Management

Centre

FOCC Filght Operations Control

Centre MPF

Mission Planning Facility MCS

Mission Control System

FDS Flight Dynamics

System

SSIM Spacecraft Simulator

PDS Payload Data

System

MAC Mission Archive and Catalogue

MUS Master User

Services

CALVAL Calibration and

Validation Centre

PM Performance Monitoring

PAZ Satellite Front-End

Request

PAZ Product delivery

DT Orders

DT Files

Mission Plan

S-Band TC/TM

X-Band TM

Instrument Electronics GROUND SEGMENT

6

Internal External Antenna

SAR SYSTEM CALIBRATION & CHARACTERIZATION

SAR SYSTEM VERIFICATION AND MONITORING

CalVal Centre

EXPERIMENTAL

OPERATION

SCIENTIFIC EXPLOITATION OF

PAZ

Data take Quality

Monitoring

Data take Verification

Unit

Long Term System

Monitoring

CALVAL CENTRE

PAZ Mission

CALVAL IN-FLIGHT TEST PLAN

30/10/2015 Pag.: 7

Task TypesSAR System Operation

Signal Conditioning

Attitude and Antenna Pointing

Internal Calibration

Geometric Calibration

Antenna Radiometirc Calibration

Interferometry

Polarimetry

Image Quality and Product

Definition

System StabilitySystem Residual

Errors

The test plan deals with characterization, calibration, configuration and validation of a complete E2E SAR system. At the end of the tests system shall be ready to provide products according to the product tree for all the nominal modes and to determine if specified performances are met. Groups of tasks have been identified and broken down to derivate required processes, tested/no tested features and data requirements at different levels. Software developments and test procedures have been tested with SVT1B and TDX-PAZGS test data sets

PAZ Mission 10/30/2015 Pag.: 8

Pre - launch checkpoint

Launch In - Flight Tests First System

Validation Product Definition Plan development

APPROACH


The main plan is the source of a group of plans intended to cover all the tasks to be accomplished.

Plan development Plan development

Data Takes Plan

Deployment Plan

Reflector Orientation

Plan

Test Procedures

Tests Plan

PLAN DEVELOPMENT


Launch In - Flight Tests First System



E 2 E Configuration

Characterization Calibration Status

Performance Assessment

Product Definition

Risks Analysis

SAR System Operation


External Calibration

Requirements Verification

Conditioning and

Product Specification

APPROACH


To check the status of the system and analyse key points to define the approach for next steps.

E2E system configuration:

Systematic Item identification

Data and coherence review

List of possible updates over CALVAL plan execution and possible side effects

Characterization, calibration report

List of characterization analysis: tested / no tested features

List of calibration parameters: tested / no tested

Performance assessment / product definition / validation report

Instrument performance assessment (IRF, amplitude and phase drifts, NESZ, ambiguities, TX/Rx Gain, internal calibration processes, stability)

Product tree and beam / mode parameters per product establishment

Requirement Validation matrix

Risk identification


E 2 E Configuration

Characterization Calibration Status

Performance Assessment

Product Definition

Risks Analysis

PRE-LAUNCH CHECKPOINT



Launch First System


Requirements Verification

In - Flight Tests




Conditioning and Characterization

Product Specification

APPROACH


In - Flight Tests





SAR System Operation focuses on processes that shall be carried out in PAZ operation phase:

Provide requested products to users Monitoring the status of the system Generation and distribution of a new system configuration Provide data for characterization, calibration and validation to CALVAL users.

These shall be considered under different scenarios:

Commercial Operation Operation from data take request to product delivery including verification tasks.

CALVAL Centre operation. Operation from campaign definition to data analysis considered.

Configuration of the E2E system.

APPROACH

PAZ Mission


Features Under Test

Approach Refinements

Design of Test Cases

Verif. Nominal Operation

Monitor Imaging DTMonitor Health Check

E2E System Config Verification

Long term System Monitor

CALVAL Op. Nominal DT

CALVAL Op. Experim. DT

E2E System Config Release

CALVAL Op. Calibration DT

E2E System Config Generation

CALVAL Product Generation

First Level Features

Second Level Features

Operation All modes. All Variables. All Performances.

Verification Loop

CVC Campaing Design

CVC Commanding

CVC L0 and L1B Product Generation

CVC LTDBs Processing And Storage Chains

Configuration Dissemination

Configuration Acknowledge

Product Management Environment Definition

Test Procedures

Campaing Design

Data Take Commanding

MUS Request Generation

CVC Data Management

CVC Product GenerationExperimental Modes Product Generation

Verification Loop

Configuration Generation

Configuration Release

Nominal System Operation

Calval System Operation

E2E Configuration Update

Configuration Verification

30/10/2015 Pag.: 14

SAR SYSTEM OPERATION

PAZ Mission

APPROACH

10/30/2015 Pag.: 15

In - Flight Tests





Signal conditioning and characterization shall assure that the signal is good enough to be used in subsequent stages or may drive to an optimizations, establishes expected operation limits and define the actual behavior of the complete system.

PAZ Mission

SIGNAL CONDITIONING AND CHARACTERIZATION

30/10/2015 Pag.: 16

Signal Conditioning and Characterization

Features Under Test



Calibration Network Signals

Raw Data

Image

Limits Establishment

Nadir Detection and Characterization

SNR

Dynamic Range

ADC Saturation

SNR

Dynamic Range

IQ parameters

SNR

Dynamic Range

Test Procedures

Block Raw Data Analysis

ADC saturation monitoring

CN signal and noise analysis

Energy Stats. over calibration areas

Block Image Analysis

Nadir Detection and Charact.

Signal Level Verification

SNR, Dynamic Range and Overflow Margins definition

Nadir Response Analysis

Orbit Verification

Attitude and Azimuth Pointing

Doppler Characterization

Orbit Tube

Orbit Shift Verification

Doppler Limits Monitoring

Quality Limits Definition

Geometric vs. Raw Doppler

Antenna Pointing

Doppler Centroid

Doppler Analysis

Interferometry Measurements

Phase Preservation Offset

Baseline Determination Errors

Interferometric Offset

Sub-Block Test

Inter-Burst Point Target

Inter-Swath Point Target

Baseline Error Budget

Orbital Offset Induced

PAZ Mission

INTERNAL CALIBRATION

10/30/2015 Pag.: 17

In - Flight Tests





Intended to correct instrument effects on image products, excluding antenna pattern.

TRM analysis to control the effect of antenna feed. Gains (amplitude and phase) in signal paths: RxGain validation System noise Calibration strategy Chirp reference and azimuth drifts Internal calibration processes



Features to be Tested



Procedures

Status of Antenna TRM

TRM shift w.r.t. TRM Reference Status

RX Gain Actual Values

System Noise Power

Warm up Effects over CN Signals

Prolog TX Behavior

Chirp Reference

Replica IRF Degradation Performances

Internal Delays

Internal Calibration Accuracy

TRM Reference Generation

PN_Gating Accuracy Evaluation

TRM Monitoring

RX Gain Calibration Validation

Temperature Analysis

Cal. Network Signal and Noise Analysis

Drift in Azimuth

System NESZ

Internal Calibraton Accuracy

TRM Reference Generation

PN_Gating Accuracy Evaluation

Temp. Limits Verification

Temp. Drifts Verification

CAL Pulses Analysis

Cal Strategy Analysis

Replica Analysis

Absolute Azimuth Drift Extraction

Residual Drift Calculation

NESZ Estimation

INTERNAL CALIBRATION

PAZ Mission

EXTERNAL CALIBRATION

10/30/2015 Pag.: 19

In - Flight Tests





Intended to estimate and compensate error contributions to the complete SAR System. Activities shall analyze antenna pattern effects on the images, transform digital numbers into physical units and assure the location accuracy of the generated products

PAZ Mission

EXTERNAL CALIBRATION

30/10/2015 Pag.: 20


Radiometric Calibration

Antenna PointingAntenna Pattern

Verification


Features to be Tested



Elevation Pointing via Rain Forest DTs

Azimuth Pointing via Transponder

Elevation Pattern verification

Azimuth Pattern verification

Absolute Calibration Factor

Absolute Radiometric Accuracy

Relative Radioimetric Accuracy

Radiometric Stability

Polarimetric Calibration

Antenna Pattern Estimation

Antenna Pattern Verification

Antenna Beam to Beam gain Verification

Antenna Elevation Pointing

Antenna Phase Pattern Validation

DT Start Time Characterization

Systematic Azimuth Shift

Internal Delay Calibration

Abs. and Relative Radiometric Accuracy

Radiometric Stability

Abs. Cal. Factor

Channel Imbalance

Channel Cross Talk

Polarimetry

Test Procedures

PAZ Mission

DATA TAKE PLANNING

A 10 cycles plan is defined: 3 cycles for nominal chain, 2 cycles for redundant chain and 2 cycles main chain mainly intended to system validation based on stripmap mode. 3 cycles main chain intended to system validation and product definition for SL, HS and SC modes.

30/10/2015 Pag.: 21

Two point target deployments have been designed. The first one for stripmap analysis, and the second one for spotlight and scansar modes.

21 CR with 2 deployments with reorientations Max 60DT per day / 33 up to L1b 10 Orbit cycles 2-4 system configuration changes RX Transponder

PAZ Mission

ORBIT CYCLES AND STAGES

Orbit Cycles #1 #2 #3

Stages Conditioning Main ICU Characterization, Internal and Geometric Cal.

Orbit Cycles #4 #5

Stages Redundant ICU Characterization

Orbit Cycles # 6 # 7

Stages External Cal. System Validation

SM Product Definition

Orbit Cycles #8 #9 #10

Stages SL, HS, SC Product Definition

30/10/2015 Pag.: 22

SL, SC Deployment

Config Change

Config Change

PAZ Mission

SUMMARY

The objective of this plan is to identify, define and carry out the activities required to the first E2E validation of the complete PAZ SAR system and the initial product definition for all imaging modes.

Software developments and test procedures mostly completed Software tested with TDS from SBT1B and TDX-PAZGS campaigns Data take plan completed for cycles 1, 3, 4, 5, 6, 7, 8, 9 and 10 Data take plan for cycle 2 (hot/cold) on progress Calibration Sites defined. Contractual agreements to be signed. 21 Ground corner reflectors defined: 6 ready 15 on progress 1 transponder on development

30/10/2015 Pag.: 23

www.inta.es


In-Flight Test Plan - CEOS WGCVsarcv.ceos.org/site_media/media/documents/Cuerda-_PAZ... ·...

Documents

Transcript of In-Flight Test Plan - CEOS WGCVsarcv.ceos.org/site_media/media/documents/Cuerda-_PAZ... ·...