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中文摘要：
目的为得到一种具有双重模型的同步码分多址CDMA系统线性多用户检测器（双模检测器）,解决匹配滤波检测器和解相关检测器独立检测的缺陷问题。方法通过对角加载特征波形的相关矩阵,给出双模检测器的线性算子。利用解相关检测器和匹配滤波检测器的输出信干比（SIR）,导出双模检测器的检测模型转换准则。结果根据信道的变化特征,通过选择对角加载量可以动态地在解相关检测和匹配滤波检测两种模型之间转换。结论双模检测器能够同时实现匹配滤波检测和解相关检测,比匹配滤波检测器和解相关检测器有更好的误码性能。
英文摘要：
Aim In order to obtain a linear multiuser detector with dual-mode for synchronous code division multiple access （CDMA） systems and solve the shortcoming of the matched-filter and decorrelator. Methods The linear operator of the dual-mode detector is proposed by diagonal loading the correlation matrix of the signature waveforms. The switching criterion of detection mode is derived by the output signal interference ratio of the decorrelator and the matched-filter. Results The dual-mode detector dynamically switches its detection mode between matched-filter and decorrelator based on the channel characteristics. Conclusion The dual-mode detector can implement the detection of decorrelator and matched-filter simultaneously and have better Bit Error Rate （BER） performance than the decorrelator and matched-filter.
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同项目期刊论文
Multitarget identification and localization using bistatic MIMO radar systems (vol 2008, art no 2834
Joint frequency ambiguity resolution and accurate timing estimation in OFDM systems with multipath f
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