您要查找的是不是:
- amplitude and phase correction 幅相校准
- This shows that the amplitude and phase error has important effect on ASLC. 理论分析和仿真结果表明幅相误差对自适应旁瓣对消系统具有重要的影响,必须加以克服。
- Carrierless Amplitude and Phase Modulation has emerged as the de facto standard, having captured most of the nascent market to date. 无载波振幅和相位调制正在成为事实上的标准,迄今已占了这个新生市场的大部分。
- Frequency is swept to rapidly obtain amplitude and phase information over a band of frequencies of interest. 频率是席卷迅速获得振幅和相位信息超过波段的频率的利益。
- First, a high velocity increases the mass of an electron, which affects the amplitude and phase of its oscillations. 首先,高速会使电子质量增加,从而改变它振动的振幅与相位。
- While homomorphic processing can also be used to calculate attenuation, amplitude and phase of one mode simultaneously. 同态处理方法还可以同时估计单一波模式的衰减、幅度和初相位;
- Carrierless Amplitude and Phase Modulation has emerged as the de facto standard,having captured most of the nascent market to date. 无载波振幅和相位调制正在成为事实上的标准,迄今已占了这个新生市场的大部分。
- Both the amplitude and phase optical modulation characteristics of Epson liquid crystal television are studied using the optical measures. 采用光学干涉法和透射法分别测试了爱普生 Epson 液晶电视 L CTV 的位相和振幅调制特性 ;
- Ionospheric scintillations are rapid variations in the amplitude and phase of radio signals resulting from density irregularities in the ionosphere. 摘要电波穿越电离层时,由于受到电离层不均匀结构的影响,电波的幅度、相位、时延等有时会发生快速抖动,这就是所谓的电磁波电离层闪烁现象。
- To learn about the amplitude and phase features of GPR reflected wave from frozen soil boundary, forward modeling was also developed. 通过正演模型试验了解了冻土边界的雷达反射波波形、振幅及相位特征;
- Conversion of an LVDT's output signals' amplitude and phase into a form compatible with a microcontroller's internal ADC usually requires additional external circuitry. LVDT输出信号的波幅与相位转换成与微控制器内部ADC兼容的形式,一般需要添加外部电路。
- This paper clarifies the theory of I/Q modulation, elaborates EVM and ACPL, and analyzes the effect of amplitude and phase imbalance and DC offset on EVM. 在阐述I/Q正交调制基本原理的基础上,通过对误差矢量和邻近信道功率泄漏的详细分析,定性、定量地讨论了各种非理想电路因素(如相位不平衡、幅度不平衡、直流偏差等)对调制器性能的影响。
- The former one is now widely used in the monopulse system to calibrate the amplitude and phase imbalances between the sum and difference channels by injecting test signals. 离线校正的方法是现阶段单脉冲雷达系统进行和差通道幅相校正采用的主要方法,它通过注入测试信号的方法来得到对误差接收通道幅相特性的估计。
- After deducting the effect on NSR caused by the quantization process in both amplitude and phase, we elucidate the actual methods of NCO in an FPGA and give the simulating result. 最后,给出了NCO在FPGA中的具体实现方案和仿真结果。
- Time-varying signal model, whose frequency, amplitude and phase are time-varying based on the random walk model, is in more accord with the real Coriolis Mass Flowmeter signal. 频率、幅度和相位均按随机游动模型变化的时变信号模型,能更为真实地描述科氏流量计信号的实际特性。
- Therefore hydrophone output contains random perturbations both in amplitude and phase, which affect the beam pattern and array gain in MVDR based beamforming. 在作MVDR自适应波束形成时,该随机误差的存在将影响到基阵的阵增益,降低检测能力。
- Because of the difference in amplitude and phase between channels,the cancellation performance will usually degrade greatly in adaptive sidelobe cancellation(ASLC) system. 制导雷达中若使用常规自适应旁瓣对消方法,辅助天线中的期望信号会引起测角误差。
- The results show that AP algorithm is superior to BAQ algorithm at the same reduction ratio.Thereby AP algorithm preserves more information of amplitude and phase. 结果表明在相同压缩比下,该文给出的算法优于BAQ算法,保留了更多的信号幅度和相位信息。
- Chapter 2 discusses digital beamforming (DBF) of phased array radar and the amplitude and phase errors. 第二章介绍了相控阵雷达的数字波束形成,并对接收机的幅相误差进行了分析。
- A mathematical model in the grinding technology of explosion-proof surface is worked out to find out vibration characteristics, amplitude and phase, and educe the relation curve between shape error and technical parameter. 进而讨论箱体零件加工工艺过程误差转换模型、形状精度特征、传递图、描述方程、误差转换结构图;提出防爆面磨削工艺系统的数学模型;求解出振动特性、幅值和相位,得出了形状误差与工艺参数的关系曲线。