Pulse Doppler filtering on groups of 8 or greater pulses with a fine grained clutter map. Aircraft are detected in ground clutter and / or rain with the Doppler filter bank & use of 2 PRFs. Courtesy of Northrop Grumman Used with permission. Why? Figure by MIT OCW.

By making the radar coherent, the phase history of the target can be preserved during the coherent processing interval (CPI), so that Doppler information can be derived, which provides two dimensions: distance and Doppler. This two-dimensional information can help isolate the required moving target from the surrounding static clutter, thereby ...

2002年4月25日 · To manage the radar's resources efficiently, shorter coherent processing intervals (CPIs) should be used for nearby or large targets. However, shortening the CPI effects STAP performance by increasing the amount of Doppler space that is lost to the clutter null. This paper analyzes the useable Doppler space performance of short CPI STAP.

The CPI (Coherent Processing Interval) must be long enough to achieve a certain signal-to-noise ratio (SNR) that insures the efficiency of detection. This paper analyzes the condition of detection in the case of low SNR, discusses three different cases that would occur during integration and presents a method to determine the CPI.

Further, distinct subsets of complementary waveforms are used in the coherent processing interval (CPI) of FM noise radar where they can be pre-summed on receive to reduce the overall sidelobe level.

CPI in Radar commonly refers to Coherent Processing Interval, which is a duration during which radar signal processing occurs to improve detection accuracy and target resolution. This term is essential in understanding how radar systems optimize their performance through signal processing techniques.

Radar returns are collected in a coherent processing interval (CPI), which is referred to as the 3-D radar data cube shown in Figure 1, where K denotes the number of samples collected to...

In this paper we evolve the fundamental metacognitive radio model for radar by designing a model capable of selecting CR strategies in real-time using a software defined radar (SDRadar). The challenge is to develop a model that selects the most advantageous CR strategy based on the changing environment and real-time radar performance assessment.

Abstract—In this paper we examine some of the practical aspects of implementing cognitive radar (CR) techniques onto software defined radar (SDRadar) platforms.

all-zero-valued pulses in a coherent processing interval (CPI) for each transmitter and increase the efficiency of radar transmitters. Meanwhile, it still maintains the advantages of full spatial diversity without inter-range-cell