Radar Library

Add-on module streamlining design setup and simulation for different array configurations powering today's radar applications
Radar Library

Radar and Phased-Array Systems

The radar, test bench, and phased-array library module provides radar signal generation, radar-specific target and propagation modeling, and radar signal processing capabilities. The library is tailored to give easy access to all the needed capabilities for simulations such as RF interference, antenna arrays, and multipath channels. The types of radars supported span military, medical, weather, automotive, and more.

The Radar Library Advantage

Capture end-to-end radar performance inclusive of target and channel modeling and built-in signal-processing for enhanced radar simulation.


Dedicated radar component library provides accurate representation of RF signal generation, transmission, phased-array antennas, T/R switching, clutter, noise, jamming, and signal processing blocks.


Configure planar phased-array or MIMO-array systems, interactively modify to achieve the desired behavior, and then generate system diagrams and/or circuit schematics and EM structures for further analysis.

Features at a Glance

  • Signal Generation – Radar signal generation such as chirp linear FM signals, frequency-modulated continuous-wave (FMCW) signals, and more
  • Models  RF, antenna, and propagation models for common radar RF links, clutter, jammers, and intereferers, Doppler shifts, fading, white Guassian, and more 
  • Targets – Dynamic modeling of targets based on range and Doppler offset patterns, as well as radar-cross section (RCS) with Swerling fluctuations
  • Signal Processing – Baseband signal processing for moving-target indication (MTI), moving-target detection (MTD), and constant false-alarm rate (CFAR)


Radar-Signal Generation

The radar library includes popular radar signal sources such as chirp-linear FM signals, chirp-FM signals with externally-defined ramp,  and FMCW. These signal generations are parameterized to support user-defined pulse-frequency span, pulse-repetition frequency (PRF), duty cycle, and more. The output waveform is a complex or complex envelope signal that spans the signal frequency from a start to a stop value using a linear ramp. The center frequency of the generated signal can be defined manually or calculated automatically as the center of the signal band.

RF, Antenna, and Propagation Models

The comprehensive library addresses end-to-end radar systems with common radar RF links, an RF-clutter model, jammer and interference models, and antenna models, as well as channel-propagation models, including multi-path fading, Doppler shift, Rummler channel, clutter channel, white Gaussian noise, and Weibull noise.

Target Modeling

The radar library supports dynamic modeling of targets based on range and Doppler offset patterns to emulate the radar target. The software also supports RCS models with Swerling fluctuations.

Signal (Baseband) Processing

The library includes specialized signal processing blocks to support baseband analysis, including MTI, MTD,  and CFAR. In addition, VSS system design software can combine the front-end circuits with NI LabVIEW-based signal processing building blocks, capturing the effects of circuit changes to the overall system performance. The LabVIEW block provides access to an extensive LabVIEW signal-processing library, as well as to RF instruments and FPGAs, supporting IP sharing, hardware in the loop, cross verification, and virtual prototyping.

Phased-Array Generation

The accompanying phased-array generator wizard and test bench enables engineers to rapidly configure phased-array antenna systems and gain further insight into overall array performance. The user interface to each block in the test bench enables users to readily construct different array configurations and analyze array-gain patterns. System designers can thus simulate element failures, variations in gain and phase, and imperfections in placement of patches.