Sequential detection should be applied for the search mode of phased-array radars. A range-dependent weighting has to be used to combine the test function from range cells for forming one test function for the respective beam position. Then the highest gain, expressed in SNR saving, is achieved at maximum range. The most effective detection performance is achieved with coherent signal processing.

Chapter Contents:

• 9.1 Incoherent detection
• 9.2 Multiple range elements
• 9.2.1 Independent test of all range elements
• 9.2.2 Common test for all range elements
• 9.2.3 Combined test with range-dependent design signal
• 9.2.4 Comparison of the test for multiple range cells with the fixed sample size test
• 9.2.5 Sequential detection with a filter for the rejection of stationary clutter
• 9.3 Coherent test function
• 9.3.1 Test function with autocorrelation estimates
• 9.3.2 Sequential test function with autocorrelation estimates
• 9.3.3 Simulation studies for a comparison of incoherent and coherent sequential tests
• 9.3.4 Gain comparison of the coherent sequential and fixed sample size test
• 9.3.5 Extension for multiple range elements
• 9.3.6 Variable Doppler frequency of the target signal
• 9.4 Comparison of detection procedures
• 9.5 Adaptation to the noise level and energy management
• 9.6 Sequential test for long signal series
• 9.6.1 Sequential test with coherent sections
• 9.6.2 Simulation studies
• 9.7 Experimental system
• 9.8 Conclusions
• References

Inspec keywords: array signal processing; phased array radar; radar signal processing

Other keywords: range-dependent weighting; radar signal processing; respective beam position; sequential detection; phased-array radars; SNR saving; test function

Subjects: Signal processing and detection; Radar equipment, systems and applications