| 1. | Bandpass sampling theorem and digital quadrature coherent detection
带通采样定理与中频采集数字正交检波 |
| 2. | Realization of quadrature coherent detection by direct sampling of if signal
直接中频采样实现正交相干检波的研究 |
| 3. | Radar if signal sampling and engineering implementation of digital coherent detection
雷达中频信号采样及数字相干检波的工程实现 |
| 4. | In awgn channel , this paper gives the shannon limit analysis of bfsk coherent detection
本文还对bfsk信号相干检测在awgn信道模型下的香农限进行了分析。 |
| 5. | The principal advantage over the dual filter coherent detection is a four - fold reduction in bandwidth
与双滤波器相干检波相比的主要优点是带宽减少了四分之三 |
| 6. | Extraction of the in - pulse characteristics of signal based on direct sampling from if signal and quadrature coherent detection
基于中频直接采样正交相干检波技术的信号脉内特征提取 |
| 7. | However , on the other hand , compared with coherent detection , differential detection comes with an evident loss of performance
但相比于相干检测,差分检测在性能上也会有相当的损失。 |
| 8. | Because of the simplicity of differential detection system , we could consider to apply it to the selective fading channels instead of coherent detection
由于差分检测的简单易实现性,当信道衰落比较严重时,可以考虑采用该方法替代相干检测。 |
| 9. | The conclusion is made that in the same case , the shannon limit of bfsk based on coherent detection is 3db more than that of bpsk in bsc channel
通过本文的分析可以得到结论,同样条件下, bfsk信号相干检测时的香农限比bpsk信号在bsc信道模型下的香农限多出3db 。 |
| 10. | Some problems of wireless transmission are discussed in the paper , centering on the design of high performance physical channel structure , synchronization technique ( acquisition and tracking ) and coherent detection technique
本文围绕高速业务无线传输中的高性能物理信道结构设计、码捕获与跟踪同步技术、载频提取及相干接收技术等问题展开研究。 |
