signal path

OFDM as well as multi-channel-coding and multi-modulation is adopted by DRM. This combine with interleaving and error protection to decrease the effect of frequency selective fading, multi-path time delay and Doppler effect. Then the robustness of the signal transmitted is enhanced.

DRM采用OFDM调制方式和多级信道编码，使用交织、差错保护技术，大大地减轻了频率选择性衰落、多径时延以及多普勒效应的影响，提高了信号传输质量和稳定性。

Direct-Path Signal Obtaining to Digital Video Broadcasting Transmitter Radar Based on the Spatial Filtering

数字电视辐射源雷达基于空域滤波的直达波获取

Wireless signal propagated in the wireless channel will be affected by multi-path time delay spread, Doppler shift, angular spread and other characteristics of multi-path fading, leading to the received signal distortion in amplitude, phase and frequency.

无线信号在无线信道中传播，容易受到多径时延扩展、多普勒频移、角度扩展等多径衰落特性影响，导致接收信号在幅度、相位和频率上失真。

With the chip of TI, The system is designed to realize special tasks through arithmetic of path plan, which can gather the signal of bucket, pole and arm of Grab at real time and then drive the hydraulic pressure proportion clique.

采用TI公司的DSP芯片为核心，实时采集挖掘机的铲斗、斗杆和动臂三路角度模拟信号，通过算法规划路径驱动液压比例阀实现特殊作业。

In different signal to noise ratio ( SNR) and multi-path channel conditions, and compared with the traditional algorithm, the precision of improved timing algorithm is obviously improved.

在高斯白噪声和多径信道条件下，与传统算法比较，改进算法定时同步精度有明显提高。

Through signal analysis in time and frequency domains, the vibration transmission path from brake to steering wheel is clarified. In the end a vibration control method by means of adjusting the rigidity of rubber bushing is put forward.

通过信号时域和频域分析，明确了振动从制动器到转向盘的传递途径，提出了调节橡胶弹性元件刚度的振动控制方法。

Error will occur during the transmission when digital television signal is transmitted in channel interfered by noises and multi-path effect.

由于噪声和多径衰落等干扰因素的原因，导致数字电视信号在信道的传输过程中产生信息误码。

It resolves problems of real time receiving and processing of GPS signal, real time displaying GPS location signal, modifying the error of road matching method, the abstraction and construction of the topological structure of city road network, and the shortest path navigation, etc.

重点解决了GPS信号实时接收与处理、GPS定位信号实时显示、道路匹配算法误差修正、道路网网络拓扑结构的提取与构架、最短路径导航等技术问题。

In transmission systems, the structure or path along which the signal is propagated, such as wire pair, coaxial cable, waveguide, optical fiber, or radio path.

在传输系统中可传播信号的结构或路径，如导线对、同轴电缆、波导管、光导纤维或无线电路等。

The theoretical and simulation analysis about acoustic signal processing in multi-path channel and the engineering software design are given in the dissertation.

该系统采用主动工作方式，本文系统地研究了在多途信道中对声学信号进行处理的理论研究和仿真分析及工程软件设计。