Beamforming with Distributed Arrays: FY19 RF Systems Line Supported Program

Abstract

Spatial beamforming using distributed arrays of RF sensors is treated. Unlike the observations from traditional RF antenna arrays, the distributed array's data can be subjected to widely varying time and frequency shifts among sensors and signals. These shifts require compensation upon reception in order to perform spatial filtering. To perform beamforming with a distributed array, the complex-valued observations from the sensors are shifted in time and frequency, weighted, and summed to form a beamformer output that is designed to mitigate interference and enhance signal energy. The appropriate time-frequency shifts required for good beamforming are studied here using several different methodologies.

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Document Details

Document Type
Technical Report
Publication Date
Jan 07, 2020
Accession Number
AD1098484

Entities

People

  • H. Naumer
  • K.w. Forsythe
  • L. Collins

Organizations

  • MIT Lincoln Laboratory

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Air Force
  • Algorithms
  • Antenna Arrays
  • Antennas
  • Arrays
  • Compressed Sensing
  • Detectors
  • Doppler Effect
  • Equations
  • Filtration
  • Frequency
  • Frequency Shift
  • Linear Algebra
  • Random Variables
  • Signal Processing
  • Two Dimensional
  • Vector Spaces

Fields of Study

  • Engineering

Readers

  • Phased Array Antenna Design.
  • Statistical inference.