WebOct 7, 2024 · A novel coherent integration method for high dynamics direct sequences spread spectrum (DSSS) signal is presented. The presented method is based on adjacent cross-correlation function (ACCF) and Lv's distribution (LVD). ACCF is firstly used to compensate the code phase drift and reduce the Doppler frequency migration order. Webprocessing use the Doppler shift of the different signals to enhance detection of moving targets and reject clutter. – The total solution is a sequential set of Doppler processing …
Range Migration Compensation and Doppler Ambiguity
WebDec 23, 2016 · School of Electrical & Computer Engineering. Georgia Institute of Technology. 266 Ferst Drive. Atlanta, GA 30332-0765Phone: 404-894-2714. E-mail: [email protected]. Office: Klaus Advanced Computing Building (KACB), Room 3354. Local Travel Information. WebMar 20, 2024 · When a target is in complex three-dimensional (3-D) motions, inverse synthetic aperture radar (ISAR) images cannot be obtained with any motion compensation algorithms. In this case, selecting optimal coherent processing interval (CPI) (or frame) of the fixed rotational axis is the only way to obtain focused ISAR images. In this article, we … corsair scimitar repair wheel
Coherence time - Wikipedia
WebAbstract: In pulsed Doppler radar, when wideband signals are used and the target radial velocity is high, linear range migration occurs and cannot be neglected. The migration misaligns the range profiles within a coherent processing interval and degrades the coherent integration gain eventually. Webthe LFM pulse train in a coherent processing interval (CPI), t is the full time, t m = mT r is the slow time, and T r is equivalent to PRI. Assuming that the target has P scatterers, A p denotes the amplitude of the received signal of the pth scatterer. τ(m) p = 2r (m) p /c indicates the round-trip time delay of the pth scatterer at the mth ... WebMay 19, 2024 · The coherent integration method based on data re-alignment in two-dimensional frequency domain is as follows: Step 1. Fast-time Fast Fourier Transform (FFT) operation is performed in range domain for N pulses with the integration variable τ . π π (7) where fm represents the fast time frequency units. Step 2. corsair scimitar pro how to assign keys