Design of High-Performance Survival Radios using Discrete Time Analog Signal Processing

Abstract

In this project, we focused on the architectural and circuit-level design for a low cost, portable soldier radio with high survivability. We identified passive switched capacitor circuits as a suitable candidate for meeting these performance targets. We developed an architecture that uses a high dynamic range FFT to perform low amplitude signal detection in the presence of large jammers. Based on our analysis and modeling of non-idealities in switched capacitors, we were able to construct and simulate a sampled charge based 16 point FFT processor. The processor is able to compute the FFT of a 2GHz wideband input signal using only 1mW total power with a dynamic range exceeding 65dB without noise averaging and 90dB with noise averaging. This performance exceeds the requirements for signal detection in a typical wireless war theater communications scenario.

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Document Details

Document Type
Technical Report
Publication Date
Jan 16, 2011
Accession Number
ADA547251

Entities

People

  • Ramesh Harjani

Organizations

  • University of Minnesota

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Human Systems

DTIC Thesaurus Topics

  • Abstracts
  • Analog Signals
  • Bandwidth
  • Capacitance
  • Capacitors
  • Carrier Frequencies
  • Circuits
  • Computations
  • Department Of Defense
  • Dynamic Range
  • Engineering
  • High Dynamic Range
  • Models
  • Signal Detection
  • Signal Processing
  • Software Defined Radio
  • Students

Fields of Study

  • Engineering

Readers

  • Approximation Theory.
  • Integrated Circuit Design and Technology.
  • Sensor Fusion and Tracking Systems.