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- W2389346957 abstract "In this paper,a transform algorithm for compressing synthetic aperture radar(SAR)raw amplitude and phase(AP)data is proposed.This algorithm is based on combination of discrete cosine transform(DCT)and trellis coding quantization(TCQ).Firstly,the SAR raw data,expressed in the form of amplitude and phase,is done with the DCT in order to reduce the correlation of all data,and makes the statistical properties of the data in according to the Gaussian distribution.Then,the transform coefficients are done with the TCQ.Test results on the actual measurement SAR raw data show that the proposed algorithm can effectively control the precision of the phase data.Under the same quantization criteria,the average error and phase error has been reduced and the data similarity,the signal to noise ratio(SNR)of both data and image have been improved." @default.
- W2389346957 created "2016-06-24" @default.
- W2389346957 creator A5061270163 @default.
- W2389346957 date "2014-01-01" @default.
- W2389346957 modified "2023-09-23" @default.
- W2389346957 title "Compression algorithm for SAR AP raw data based on DCT" @default.
- W2389346957 hasPublicationYear "2014" @default.
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