TW Research Ltd

RaSPA

Radar Simulation and Performance Assessment

RaSPA is a program for carrying out a wide variety of Radar simulation and performance evaluation tasks. The current demonstration version of RaSPA (demo 1 version 2) is capable of plotting  various outputs of the radar equation and for evaluating the detection performance of a radar system for targets in clutter. A simple PPI simulation mode is also included.

RaSPA can evaluate the performance of a radar system for Swerling 0 to 4, or Gamma fluctuating (pulse-to-pulse or scan-to-scan), targets in compound K distributed clutter plus noise. Facilities are provided in the program for non-coherent pulse-to-pulse integration, track before detection and for binary (M out of N) scan-to-scan integration.

The following assumptions are made:

· from pulse-to-pulse the speckle component of clutter is assumed to be decorrelated (most likely through the use of frequency agility) and the Gamma component is assumed to be completely correlated;

· from san-to-scan both clutter components are decorrelated;

· a square law detector is used.

· The calculations use the full distribution of clutter plus noise, and therefore does not make the approximation of an ‘equivalent n’ for the clutter shape parameter when noise is present.

RaSPA (demo 1 version 2) can be run in one of two modes:-

Radar performance calculation – this is a full implementation of the radar equation including detection of targets in sea clutter.

Statistical detection calculation – this evaluates detection performance for targets in K distributed clutter plus noise.

A custom version for a particular radar/application can be developed - to cover for example:- radar type/operating mode (e.g. surveillance, AMTI, Pulse Doppler, SAR-GMTI, ISAR),  custom output (e.g. range-doppler maps, range profiles) or any other radar application. For further information, contact us at info@twres2.f2s.com.

RaSPA screen shot