Chirp scaling algorithm
WebThis paper deals with the problem of high cross-range resolution Doppler beam sharpening (DBS) imaging for airborne wide-area surveillance (WAS) radar under short dwell time situations. A knowledge-aided DBS (KA-DBS) imaging algorithm is proposed. In the proposed KA-DBS framework, the DBS imaging model for WAS radar is constructed and … WebMar 1, 2013 · Based on an exact analytical bistatic point target spectrum, an efficient chirp-scaling algorithm is proposed to correct the range cell migration of different range gates to the one of the reference range for tandem bistatic synthetic aperture radar data processing.
Chirp scaling algorithm
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WebJul 21, 2003 · A generalized formulation of the extended chirp scaling (ECS) approach for high precision processing of air- and spaceborne SAR data is presented, which incorporates a new azimuth scaling function and a subaperture approach, which allow an effective phase-preserving processing of ScanSAR data without interpolation for Azimuth … WebAug 21, 1993 · The chirp scaling SAR processing algorithm is both accurate and efficient. Successful implementation requires proper selection of the interval of output samples, which is a function of the chirp interval, signal sampling rate, and signal …
WebThe proposed method contains two stages. Firstly, after RWC processing, the main component of range-variant RCM is corrected in the coarse RCMC stage by range chirp … WebAbstract: Aiming at the problem that it is difficult to balance the fidelity and low computation when generating false scenes by existing synthetic aperture radar …
WebJan 1, 2014 · This paper presents four imaging approaches for terrain observation by progressive scans (TOPS)-mode SAR focusing, all of which take advantage of modified chirp scaling (CS) algorithms... WebMay 23, 2000 · This paper presents a generalized formulation of the extended chirp scaling (ECS) approach for high precision processing of air- and spaceborne SAR data in stripmap, ScanSAR and Spotlight...
WebApplying chirp scaling to the transformed signal through a which is used both in the transmission and reference signals. range-varying phase shift multiply along a line of constant azimuth frequency that equalizes the …
WebMar 3, 2012 · By performing the transfer-function measurement at various bias voltage levels, chirp parameter versus bias voltage can be obtained, as shown in Fig. 3.3.13.It is … incarnate vest gw2WebThen, an extended azimuth nonlinear chirp scaling (EANLCS) algorithm with an addition of highly varying residual Doppler centroid correction for BiSAR with curved trajectory is proposed. Simulation results show the effectiveness of the … incarnate weapons warframeWebIn addition, the modified chirp scaling function is proposed to complete the RCM correction and the azimuth compression is operated in frequency domain. Finally, simulation and … inclusion\\u0027s 8fWebThe presented approach consists of the range and azimuth scaling of the polar samples, in which only fast Fourier transforms (FFTs) and complex vector multiplications are … inclusion\\u0027s 8aWebOct 7, 2024 · Generation scheme of chirp scaling phase functions based on floating-point CORDIC processor 1 Introduction. When performing on-board real-time synthetic aperture radar (SAR) imaging processing, for purpose of... 2 Chirp scaling algorithm. The CS algorithm is one of the most basic algorithms for SAR ... inclusion\\u0027s 85WebAug 1, 2007 · A new fractional chirp scaling algorithm (FrCSA) for highly squinted missile-borne SAR is proposed from high resolution point of view and results indicate that the FrCSA offers better focusing capabilities, greater peak sidelobe ratio (PSLR), and integrated sidelobe ratios (ISLR) by appropriately choosing the rotation angles for the range and … incarnate websiteWebThe Chirp-Scaling Algorithm (CSA) is one of the most widely used synthetic aperture radar (SAR) image reconstruction method. It has the bene t of eliminating the interpolation for the range cell migration correction. However, CSA s applicability is limited to straight ight trajectories and monostatic SAR. inclusion\\u0027s 8b