The principal advantage over the dual filter coherent detection is a four - fold reduction in bandwidth 与双滤波器相干检波相比的主要优点是带宽减少了四分之三
2.
One theory and arithmetic " dual filter scan " of seeking peak in spectral analysis is brought forward and used for demarcate of spectrum and other analysis 提出光谱分析寻峰的一种原理和实现的算法“两层扫描筛法” ，用于光谱的标定和其它分析。
