A new segment correlation and amplitude accumulation method of direct sequence spread spectrum signal pseudorandom code period 分段相关累加算法提取直扩信号伪码周期
Study on the anomalous characteristics of amplitude ratio and energy ratio of code waves 尾波振幅比和能量比异常特征研究
The dynamic characteristics of ferromagnetic beam-plate, such as, amplitude of vibration, frequency of vibration, dynamic instability that varies with the applied magnetic field increasing are simulated by a numerical code. 数值模拟了铁磁梁式板在稳恒磁场,脉冲磁场下的振幅,频率的变化及其动力失稳特征。
Through numerical simulating, it was observed that the optimum injected electric current should be chosen to minimize amplitude modulating effect and code pattern effect. 通过数值模拟,发现必须合理选取SOA的注入电流,从而消除幅度调制效应和码型效应的影响。
Merely the fatigue strength in uniaxial tension or compression under constant-amplitude cyclic loading is given in the existing Design Code. 现行规范中,仅有混凝土单轴、等幅波动拉伸和抗压强度指标,采用这些指标进行设计,会导致设计结果有时偏于保守,如变幅及多轴压疲劳;
With the measured data such as time of arrival ( TOA)> width> repetition frequency ( RF) and amplitude of every pulse and the frequency code the processor can sort the signal and identification the desired radar. 信号分选识别处理器通过对每个脉冲到达时间、脉冲宽度、脉冲重频、脉冲幅度等的测量,加上测频接收机输入的频率码,完成信号的分选和识别出预定雷达。
Both Quadrature Amplitude Modulation ( QAM) and Low Density Parity Check Code ( LDPC) are widely used in such fields as wireless communication, wired television transmission and satellite communication. 正交幅度调制(QAM)和低密度奇偶校验码(LDPC)技术应用于很广泛的领域,如无线通信、有线电视传输、卫星通信等领域。