Accession Number:

ADA523386

Title:

Adaptive Radar Pulse Compression

Descriptive Note:

Journal article

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC RADAR DIV

Personal Author(s):

Report Date:

2005-01-01

Pagination or Media Count:

4.0

Abstract:

Pulse compression enables a radar to achieve the high range resolution of a short pulse without the need for high peak transmit power via the transmission of a modulated long pulse or waveform followed by its subsequent matched filtering upon reception. However, the matched filtering of large target returns produces sidelobes that can mask the presence of smaller nearby targets. A pertinent example of this is in landmine detection by ground-penetrating radar in which the ground return can mask the presence of a mine. The Radar Division has recently developed an approach denoted as Adaptive Pulse Compression APC whereby the radar receiver matched filter is adapted to the received signal using a novel variation of Minimum Mean-Square Error MMSE estimation. By adapting the receiver filter to the received signal, the sidelobes resulting from large targets can be suppressed to the level of the noise, thereby greatly increasing the radars sensitivity to smaller targets.

Subject Categories:

  • Active and Passive Radar Detection and Equipment
  • Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE