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In order to make use of time-frequency characteristic of signal,a new method of variational estimation on signal frequency by using AR model power spectrum estimation,designing band-pass filter to gain approximatively source signals and underdetermined mixed matrix,and constructing completed observation signals by expanded subspace primer vector is proposed.

充分利用信号的时频特性，提出了AR模型功率谱估计法滑动估计信号频率，设计带通滤波器近似获取源信号和欠定混合矩阵，以及扩展子空间向量基构造完备观测信号的方法，将问题转化为完备情况下的盲分离，最后运用FastICA方法实现了信号盲分离。

Coherent interference can be suppressed by the EMCMVB efficiently. The EMCMVB first gets the modified signal subspace by using the estimated arrival angles of coherent interferers and the eigenstructure of the correlation matrix, and then projects the MCMVB weight vector onto the modified signal subspace.

EMCMVB是利用估计得到的相干干扰方向和阵列信号相关矩阵特征分解来得到修改的信号子空间，再把多约束最小方差波束形成器的权矢量向修改的信号子空间投影来得出新的权矢量。

In order to decrease the measuring error of signal processing in laser Doppler velocimeter,frequency spectrum correction methods for laser Doppler signal were proposed.

在激光多普勒测速仪中，为了减小由信号处理算法带来的测量误差，提出运用频谱校正算法对多普勒信号的频谱进行校正，详细阐述了能量重心法、比值法和相位差法3种离散频谱校正算法的基本原理，运用这3种算法对理想正弦信号进行仿真，并运用比值法对信号施加不同频率和信噪比的噪音下的正弦信号和实测的多普勒信号进行仿真及实验研究。

The character of the system is as follow: the system can generate random wave signal, the frequency of output signal can be adjusted accurately, the stability of output frequency is very high.

本系统的主要特色：可以产生任意波形的信号，输出信号的频率可精确调整，且频率稳定度很高。

The debugging of the network's communication is fulfilled after thenetwork's link. The function of the system is validated through theprocess and analysis of the vibration signal generated by signal generator.

完成了整个网络的连接，对单节点和中央计算机之间的通讯进行了测试；并且对利用振动信号发生器模拟产生的振动信号进行了分析和处理，验证了系统的功能。

State Council Development Research Center, Vice-Minister Wei Jianing macro that the central bank in the relatively early when issued a signal, however, the central bank's signal and other voices from all aspects of mixed together.

国务院发展研究中心副部长魏加宁宏观调控，央行在相对较早的时候发出了信号，但是，央行的信号和其他各方面的声音混合在一起。

Decoded video signal is placed into frame buffer to capture video signal, decode or detect motion under the control of DSP, then detected image and motion results are transmitted by S3C4516 to guarantee visit of embedded video surveillance system via internet from client.

解码后的视频信号被放入帧缓存中，在DSP的控制下进行信号采集、编码或进行运动检测，然后由S3C4510B 将图像或运动检测结果进行传输，客户端可以通过网络访问本监控系统。

It used computer software on the screen in a virtual instrument panel, with the support of the hardware in the signal sampling, can conduct real-time signal analysis, display, but also in offline storage under the condition of the acquisition deal with the results of various software.

它利用软件在微机屏幕上构成虚拟仪器面板，在硬件的支持下对信号进行采样，既可以进行实时的信号分析、显示，又可以在离线条件下对存储的采集结果进行各种软件处理。

Although vocoder can transmitter speech signal at very low bit rate, it does not work well when dealing with audio signal.

在本学位论文中我们设计了一种低码率音频编码器。对于很多不同类型的音频信号，它可以工作在很低的码速率上，虽然此时它所提供的听觉质量不是透明的，人们仍然可以接受。

Voiceprint recognition recognizes speakers, and it does not recognize contents of the pronunciation signal of speaker, but the identity of the speaker of the pronunciation signal.

声纹认证不是认证语音信号的文字内容，而是认证发出语音信号的说话人的身份。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。