| 摘要: |
| 将S变换（ST）时频分析方法应用到时相调制（TPM）信号的分析和处理中。ST及其反
变换（IST）分别有多种实现算法，这些算法组合的选择对TPM解调系统的性能有重要影响。
在介绍ST和IST多种实现算法的基础上，仿真了TPM信号的ST和IST，对比分析了
各种算法组合的性能。仿真结果表明：在恢复TPM信号波形方面，fST-fIST组合的性能最优
，tST-tIST（mtIST）组合的性能次之，交叉算法组合的性能最差。所得结论为后续的TPM信
号滤波和检测过程中ST和IST算法的选择提供了重要依据。 |
| 关键词: 时频分析 时相调制 S变换 S反变换 性能分析 |
| DOI： |
|
| 基金项目: |
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| Performance Analysis of S-Transform and its Inverse for Time-Phase Modulation |
| CHI Hua-shan,WANG Hong-xing,ZHAO Peng |
| () |
| Abstract: |
| The Stransform(ST) timefrequency analysis method is applied to the
analysis of TimePhase Modulation(TPM). There are many algorithms of ST and it
s
inverse transform(IST) calculation, and the selection of algorithm plays an imp
o
rtant part in the TPM demodulation performance. After describing the algorithms
of ST and IST, the simulation about ST and IST of TPM is performed. The simul
ation results show that the performance of the fST-fIST algorithm is the best
, the performance of the tST-tIST (mtIST) algorithm is better and the performanc
e of the crossed algorithm is the worst. The conclusion provides a basis for the
selection of ST and IST algorithms in the TPM filtering and detection. |
| Key words: time frequency analysis time phase modulation S tra
nsform inverse S transform performance analysis |
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