Conventional medium pulse repetition frequency (PRF) processing applies a double thresholding system of detection. First, within each coherent processing interval (CPI), signals in each range/velocity cell within the unambiguous range and unambiguous velocity space are compared with a threshold level to declare whether a target is present. These target detections are ambiguously repeated across the range/velocity space of interest. This process is repeated for all N CPIs; each CPI operates on a different PRF. Second, each range/velocity cell is subjected to a binary integration process, which is looking for target detections in the same range/velocity cell in M out of the N CPIs. A target is declared if detected in a consistent range/velocity cell in at least M of the total of N CPIs.

Chapter Contents:

• 14.1 Noise-Limited Detection
• 14.2 Clutter-Limited Detection

Inspec keywords: object detection; radar clutter; radar detection

Other keywords: CPI; PRF; unambiguous velocity space; radar clutter; range-velocity cell; target detection; double thresholding system; medium pulse repetition frequency processing; MEMS packaging; coherent processing interval; binary integration process

Subjects: Radar equipment, systems and applications; Signal detection