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给出了声表面波双阵列色散延迟线的一般设计法和反波动补偿设计法的综合设计程序.能够预计用这两种设计法所能获得的展宽、整形、压缩各个阶段的性能,以及总的理论性能;提供展宽、压缩器件每个换能器时域抽样点位置和指条刻图位置;定量地分析了展宽线、压缩线换能器由于刻图机精度和刻图误差引起整个器件性能的变化;并能够预计多卜勒效应对脉冲压缩性能的影响;在反波动补偿设计法中通过人工于予,可求得压缩输出换能器的最佳截断宽度.程序安排有足够的人机对话接口,使用灵活,所有输出信息整齐直观.整个程序用FORTRAN-Ⅳ语言编写,包含有20个过程,由700多条语句组成.为减少离散富里叶变换计算时间,采用了快速富里叶变换技术,按实际采用的1024离散点计算,计算机的利用效率提高一百倍左右.此外,克服了较小的内存容量和较大的计算任务之间的矛盾,保证程序运行过程中不输出过渡信息,实现了小机器计算大任务.文章还对一般设计法和反波动补偿设计法作了比较.
The general design method and anti-wave compensation design method of SAW dual-array dispersion delay line are given.It can be expected that the performance of each stage of broadening, shaping and compressing obtained by these two design methods, Of the theoretical performance; to provide broadening, compressing each transducer time-domain sampling point position and the location of the finger engraved map; quantitative analysis of the widening line, compression line transducer due to the plotter accuracy and engraving errors caused by the entire device Performance and can predict the effect of Doppler effect on the pulse compression performance in the anti-wave compensation design method by artificially give the compressible output transducer can be obtained the best cut-off width of the program has enough people Machine dialogue interface, the use of flexible, all the output information neat and intuitive. The entire program written in FORTRAN-Ⅳ language, contains 20 processes, composed of more than 700 statements.In order to reduce the discrete Fourier transform conversion time, using Fast Fourier Transform Technology, calculated according to the actual use of 1024 discrete points, the use of computer efficiency increased by about 100 times.In addition, to overcome the smaller memory capacity and larger computing tasks between Contradictions, to ensure the program is running is not output transition information to achieve a great little machine computing tasks. The article also general design method and anti-fluctuation compensation design method were compared.