A frequency modulated envelope delay FSCW radar for multiple-target applications

Maskell, Doug L., and Woods, Graham S. (2000) A frequency modulated envelope delay FSCW radar for multiple-target applications. IEEE Transactions on Instrumentation and Measurement, 49 (4). pp. 710-715.

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Abstract

A frequency modulated (FM) FSCW radar technique that uses the envelope delay to determine range information is described. The analysis shows that the measured delay produced by the FM FSCW system consists of a term proportional to the delay of the strongest reflection and a superimposed oscillation with a period equal to the difference in the target delays. A practical system able to measure target distance by determining the delay experienced by a tone modulated FM test signal reflected from the two targets is described, A feature of this design is the use of a digital phase detector based upon an IQ correlation algorithm to accurately measure the modulation phase delay and, hence, distance. While the system is being developed to measure the bagasse-water interface at the diffuser in a sugar milling process, the technique is quite general and could be applied to other close-range radar problems

Item ID: 12877
Item Type: Article (Refereed Research - C1)
Keywords: delay estimation; envelope detection; frequency modulation; microwave measurements; radar
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ISSN: 0018-9456
Date Deposited: 06 Dec 2012 04:37
FoR Codes: 08 INFORMATION AND COMPUTING SCIENCES > 0899 Other Information and Computing Sciences > 089999 Information and Computing Sciences not elsewhere classified @ 100%
SEO Codes: 89 INFORMATION AND COMMUNICATION SERVICES > 8999 Other Information and Communication Services > 899999 Information and Communication Services not elsewhere classified @ 100%
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