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Noncoherent gain enhancement technique for improved detection-estimation performance
Noncoherent gain enhancement technique for improved detection-estimation performance
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机译:非相干增益增强技术可改善检测估计性能
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摘要
A system and method of processing data in a sensor system which receives signal returns from pulsed coherent transmitted signals which are transmitted at a pulse repetition rate and with a pulse repetition interval (PRI). The method includes providing range-filtered data in response to the received signal returns; formatting successive sets of data received during a post detection integration (PDI) interval into a plurality of overlapping coherent processing interval (CPI) data sequences; performing FFT processing on the overlapping CPI data sequences to provide transformed data sequences; performing range-sample CPI processing on the transformed data sequences; and performing noncoherent integration (NCI) processing on output data from the range-sample CPI processed data sequences over a range trajectory in accordance with hypothesized radar-target range rate to provide noncoherent gain-enhanced output data. A range trajectory derived from a hypothesized radar-target range rate is updated at a compensation rate no more often than once per PDI interval.
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