RDR: Radar Library

RDR is the radar, test bench, and phased-array library module that works seamlessly with Visual System Simulator™ (VSS) system-level design software. The radar library offers radar signal generation, radar-specific target and propagation modeling, and radar signal processing capabilities. The radar library is tailored to give easy access to all the needed capabilities for simulations such as RFI, 3rd party co-simulation, antenna arrays, multipath channels. The types of radars supported include cover military, medical, weather, and automotive applications.


Recent Additions

The latest release of the VSS radar library enables easy setup for different array configurations, allowing simulation of phased arrays with thousands of antenna elements and supporting “first cut” analysis of various antenna metrics such as array gain patterns.  Other highlights include:

  • Pulse Repetition Frequency (PRF) - The addition of multiple and variable PRF radar sources, enhanced antenna and phased array blocks that support signal direction, and modeling of element patterns, including mutual coupling are now part of this library.  
  • RF Links - Provides for further characterization for array elements including gain, P1dB, NF as well as sensitivity (S)
  • Automotive Radar - New support for automotive radar such as 802.11p (car-to-car) is also enabled. 

Library Functionality

  • Radar Signal Generation

    • Chirp linear FM signals
    • Chirp FM signals with externally defined ramp
    • FMCW signals for automotive radar
  • RF, Antenna, and Propagation Models
    • Common radar RF links
    • RF clutter model
    • Jammer and interference models 
    • Antenna models
    • Multipath fading channels
    • Doppler shift channels
    • Rummler channels
    • Clutter channel
    • White Gaussian noise
    • Weibull noise
  • Target Modeling
    • Dynamic modeling of targets based on range and Doppler offset patterns
    • RCS model with Swerling fluctuations
  • Signal (Baseband) Processing
    • Moving target indicator (MTI)
    • Moving target detector (MTD) 
    • Constant false-alarm rate calculator (CFAR) 

In addition, the accompanying phased-array test bench enables engineers to gain further insight into overall array performance. The user interface to each block in the test bench lets 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.