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block float
相关语句
  相似匹配句对
     Block and Z.
     B lock和Z.
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     Float·Swim
     浮·游
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     Gypsum block
     石膏砌块
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     ON CORRELATIVE FLOAT
     论相关时差
短句来源
     Theoretical analysis for the positional error of Vee block type float-supported electromagneticcentreless chuck
     Ⅴ型浮动支承式电磁无心夹具定位误差的理论分析
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In this paper are presented the considerations of overall plan of the LFMdigital pulse compression radars,and their parameter selection realized inFFT,Which employ the quasi-block-floating point and fixed-pointnormalized algorithm.These parameters contain the quantized form in FFTcomputation,word lengths of the A/D converter,the twiddle factor andthe butterfly of the FFT,and so on.Some calculated data and curves arepresented by simulated computation via computer,these data can be usefulto engineers...

In this paper are presented the considerations of overall plan of the LFMdigital pulse compression radars,and their parameter selection realized inFFT,Which employ the quasi-block-floating point and fixed-pointnormalized algorithm.These parameters contain the quantized form in FFTcomputation,word lengths of the A/D converter,the twiddle factor andthe butterfly of the FFT,and so on.Some calculated data and curves arepresented by simulated computation via computer,these data can be usefulto engineers and designers.

本文主要介绍用准分组浮点与定点归一算法的FFT 实现线性调频(LFM)脉冲压缩雷达的总体方案、FFT 运算中的量化形式、A/D 变换器字长、旋转因子字长及FFT 蝶件字长等参数的选择。通过电子计算机的模拟计算,给出一些实验数据与曲线,可供设计及研究者参考。

Fast Fourier transforms computation using block-floating point arthmetic(BFPA) and error analysis in engineering are presented in this paper.Also theresults of comparison of BFPA with floting-point arthmetic are given.

本文从工程实用的精度、可靠性出发,对用软件作FFT处理误差进行了简析。文中对保证在一定精度前提下,适当提高计算速度的块浮点运算作了介绍,并简介国外有关文献中的块浮点运算误差分析。最后给出比较结果。

The traditional compression methods based on the data correlation have not been used to compress SAR raw data, because SAR raw signal lacks the correlated characteristics. This paper studies the theories and applications of the Block Floating Point Quantization (BFPQ) algorithm designed for spaceborne SAR raw data compression. The BFPQ algorithm is applied to ERS-1 raw signal and the simulated raw signal. The experiment results show the performance superiority of the BFPQ compared with that of the uniform...

The traditional compression methods based on the data correlation have not been used to compress SAR raw data, because SAR raw signal lacks the correlated characteristics. This paper studies the theories and applications of the Block Floating Point Quantization (BFPQ) algorithm designed for spaceborne SAR raw data compression. The BFPQ algorithm is applied to ERS-1 raw signal and the simulated raw signal. The experiment results show the performance superiority of the BFPQ compared with that of the uniform quantization

SAR原始回波信号的相关性较差,因此基于数据相关性的传统压缩方法对星载SAR回波信号的数据压缩不再实用。主要研究了块浮点量化(BlockFloatingPointQuantization,BFPQ)算法的基本理论及其在星载SAR回波信号压缩中的应用。采用BFPQ算法对ERS1回波数据和仿真回波数据进行了压缩并与均匀量化方法进行了比较,实验结果验证了其性能的优越性。

 
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