Advanced Digital Signal Processing for Hybrid Lidar

Abstract

This report focuses on progress made towards developing a frequency domain reflectometry (FDR) ranging approach for hybrid lidar. The effectiveness of the technique is being explored through a combination of simulation using the Navy's Rangefinder simulation tool and experiments. Performance as a function of turbidity and integration time are explored. A number of real-time DSP algorithms to support the FDR approach were developed using FPGA hardware. Experimental and simulation results to date have shown accurate ranging performance at standoff ranges of over 7.2 and 6.3 attenuation lengths, respectively. The application of blind signal separation to the FDR algorithm is expected to enhance this performance to over 10 attenuation lengths. Additional data collection at higher turbidities is planned in January 2014 to fully explore the performance limitation of FD and the application of blind signal separation.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Dec 31, 2013
Accession Number
ADA619093

Entities

People

  • William D. Jemison

Organizations

  • Clarkson University

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Algorithms
  • Backscattering
  • Demodulation
  • Detection
  • Digital Signal Processing
  • Dwell Time
  • Frequency
  • Frequency Domain
  • Frequency-Domain Reflectometry
  • Measurement
  • Radar Signals
  • Range Finding
  • Shot Noise
  • Signal Generators
  • Signal Processing
  • Simulations
  • Standards

Readers

  • Civilian Systems Systems Program Capability Development and Upgrade Support Activity Expense and Pay Management.
  • Computational Modeling and Simulation
  • Sensor Fusion and Tracking Systems.