以硬件为基础，对所涉及到的理论都作论述，包括探测声纳的信号波形选择，数字信号采样、处理原理与方法。
On the base of hardware approach, to discuss all the theory involve in active detecting sonar system, including the selection of signal waveform, digital signal sampling, digital signal processing.
以采样定理为基础，通过对三种跳频电台采样方案的比较得出结论，黑盒中频数字化方法是目前最合理的选择。
Based on sampling theorem, by the comparison of three sampling scheme, and the conclusion is drew that the black box of medium frequency digital is the most reasonable choice.
以遗传算法为基础，提出一种将变电站容量、位置的选择和馈线布线综合考虑、一体优化的方法。
Based on genetic algorithms, an integrated method was proposed for comprehensive planning of the capacity and location of power substations and feed wire arrangement.
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