注：FindObject函数的性能与系统中存在的对象的数量直接相关。

Note: the FindObject function's performance is directly related to the number of objects that exist in the system.

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对于非平稳随机信号的功率谱分析，采用自相关函数傅里叶变换和直接傅里叶变换分析时，由于存在数据截断，二者从概念上都不能很好地反映随机信号的功率谱。

The correlation method and FFT method of the power spectrum estimation could not completely reflect the concept of the power spectrum of the non-stationary random signals because of data truncation.

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频率转移函数是相关跳频的关键技术之一，将直接影响相关跳频通信系统的性能。

The frequency transition function in DFH system is one of the key technologies and will influences the performance of the corresponding communication system considerably.

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