Accession Number : ADA303071

Title :   Target Discrimination/Classification Radar.

Descriptive Note : Final rept. 1 Aug 92-31 Jul 95,

Corporate Author : MISSISSIPPI STATE UNIV MISSISSIPPI STATE

Personal Author(s) : Skinner, B. J. ; Ingels, Frank ; Donohoe, P.

PDF Url : ADA303071

Report Date : 01 AUG 1995

Pagination or Media Count : 153

Abstract : Adaptive FSK/PSK is a spectrally agile pulse compression rada signaling scheme that learns target-specific information over time & integrates that information into the design of its radar signal processor in real-time. This use of target-specific information into the real-time transmitter signal design process enhances the return from the target, thus improving the performance of the radar system in both additive noise environments (jamming) & ground clutter limited environments (low altitude targets). Since FSK/PSK signaling is a pseudorandom pulse compression scheme with a large time-bandwidth product, it has inherent low probability of intercept characteristics. Additionally, adaptive FSK/PSK signaling is able to earn target-specific information which can be used to identify the target using existing target identification techniques. In this study, the cross-ambiguity function of a general FSK/PSK waveform is derived and analyzed in a probabilistic manner. The results of this probabilistic analysis are used to develop a design methodology what allows the signal to be matched to an arbitrary target. It is shown that both the signal to clutter ratio and signal to noise ratio of a matched FSK/PSK radar are superior to those of a conventional signaling radar that utilizes no target-specific information.

Descriptors :   *TARGET DISCRIMINATION, *RADAR SIGNALS, *RADAR TARGETS, DATA BASES, ALGORITHMS, SIGNAL PROCESSING, COMPUTERIZED SIMULATION, OPTIMIZATION, TARGET SIGNATURES, REAL TIME, TARGET RECOGNITION, RESOLUTION, SIGNAL TO NOISE RATIO, RADAR TRACKING, DOPPLER RADAR, LEARNING MACHINES, RAYLEIGH SCATTERING, BROADBAND, ADAPTIVE SYSTEMS, RADAR RECEIVERS, PATTERN RECOGNITION, RADAR JAMMING, MATCHED FILTERS, TARGET CLASSIFICATION, INTERCEPTION PROBABILITIES, PHASE SHIFT KEYERS, PULSE COMPRESSION, GROUND CLUTTER, NOISE(RADAR), PHASE MODULATION, PSEUDO RANDOM SYSTEMS, FREQUENCY SHIFT KEYERS.

Subject Categories : Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE