To solve this question and assure the analysis precision, this article USES the analytic method combines the limited difference method, to gain the sensitivity of the aerodynamic parameter.
On the other hand, the analytic results provide the referenced gist for the design of structural parameter.
另一方面，分析结果又为结构参数的设计提供了参考依据。
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In addition the application of STFT for base band analytic signal based frequency hopping signal recognition, tracking and parameter extraction is investigated.