双边带付里叶交换方法的改进

本文提出了一种利用单边带算法来计算双边带干涉图的付里叶变换方法,给出了它对理论上模拟的干涉图函数和实际干涉图的变换结果。并将此结果同双边带方法以及传统的单边带方法(Forman法)的变换结果进行了比较,结果一致性很好,而且其计算速度比双边带和Forman法快,并保持了噪声的线性随机性,因而这种新方法具有较大的实用价值。

IMPROVEMENT ON THE DOUBLE-SIDE BAND FOURIER TRANSFORM

The improvement on the double-side band FFT is presented, we use the method of the single-side band FFT to transform the doubleside band interfero-gram.The spectra transformed by the improved method are compared with those by the double-side band FFT and Forman's method, the results showed that this improved method is satisfactory and its computing speed is faster than the others, and the noise of the spectra still keep linear and random.