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Accession Number:
AD0275296
Title:
ANALYSIS OF MATCHED-FILTER RADAR MULTIPATH RETURNS AT 435 MC
Corporate Author:
NAVAL RESEARCH LAB WASHINGTON D C
Report Date:
1962-04-17
Abstract:
An analysis was made of the 3-pulse multipath aircraft echoes that are typical of a short-pulse airborne radar. Data were obtained for both WV-2 and P2V targets with a 435-mc matched-filter radar flown over water in a WV-2 aircraft. The amplitude distribution, average value, standard deviation, autocorrelation function, and power spectrum were computed for each of the 3 pulses, as well as the crosscorrelation between pairs of pulses. The ratios of the average values of the 3 pulses were analyzed in terms of propagation factors, the antenna pattern, and the target cross section corresponding to each path. At nose aspect all 3 pulses exhibit propeller-modulation components at 50, 100, and 150. A 1-c component is observed in certain longer data samples. The crosscorrelation coefficents between pulses 2 and 3 are positive for the longer data samples this is attributed to the common fluctuation components due to reflection from the sea surface. Author
Descriptive Note:
Interim rept.
Pages:
0021
File Size:
0.00MB
