... backbone conformation ==> 脊柱构造 backbone curve ==> 背骨曲线 backbone frame ==> 脊梁架 ...
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time-frequency backbone curve 时频脊线
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They are used to yield accurate estimation for the hop frequencies and hop rate, which are fast 4th-order cyclic cumulants algorithm, time-frequency backbone curve analysis, and wavelet transform.
利用快速四阶循环累积量算法、时频脊线分析与小波变换相结合的方法，实现了跳频频率和码速率等参数的高精度估计。
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