Photonic FMCW Radar Module

Intelligent Sensing and Secure Communications

A smart light-based radar that tracks cars, drones, and more with 3D precision—delivering fast, accurate detection for safer navigation, surveillance, and defense.

Vector (2)-da6325

Institute:
IIT Delhi

Vector (3)-42d8ac

PI Name:
Amol Choudhary

Technology Readiness Level (TRL)
4

Intellectual Property:
PA No. 202211010851, 202411039577

Problem
Addressed

RF Front end for radar systems
  • Photonic generation of multi-band dual and cross LFM waveform
  • Photonic generation & filtering of tupled chirp wave-forms up to a factor of four Photonic FMCW Radar receiver module
  • Range & Speed estimation of targets
  • 3D imaging using inverse synthetic aperture radar
Arrow 6

About the
Technology

  • An optical filter-less photonic trans-receiver FMCW radar model that comprises an analog photonic link based on a dual-drive Mach Zehnder modulator (DDMZM) with direct detection at the receiver.
  • he system is theoretically analyzed and experimentally tested for detecting targets at different distances ranging from 150 cm to 210 cm and for multiple targets (up to 4), showing a range resolution of < 15 cm
  • Photonic generation
    • Dual & Cross chirp at 3 GHz, 9 GHz , 6 GHz and 18 GHz covering L, S, X and Ku bands
    • Multi-carrier up-chirped generation & filtering using SBS in S, C, X and Ku bands
  • Photonic receiver
    • Multi-target detection range; error of < 5 cm & a range resolution of < 15 c
    • Velocity Estimation of toy car; error of < 0.25 m/s
    • Imaging of targets using ISAR technology

Application Areas & Use Cases

Photonic Front-end for high bandwidth Radar waveform
generator in different frequency L, S, C, X and Ku bands

 

  • Ground Surveillance, Sensing, and Drone Hunting,
    Photonic receiver model for multitarget detection,
    velocity estimation and imaging for Drone detection
  • Tracking and Imaging drones
Arrow 6
LFM Frequency tupled to 4x • LFM at 3, 6, 9,12 GHz     • LFM at 4, 8, 12, 16 GHz     • Bandwidth of 500 MHz and 1GHz
Photonic Up Chirp generation and filtering using SBS 4 GHz, 8 GHz, 12 GHz, and 16 GH
Photonic receiver model Optical filter-less model for multi-target detection
Two-target Imaging ISAR imaging