In voice transmission , to compress the signal amplitude into a narrow range be cause the amplifiers are linear over wide ranges 在话音通信中,因放大器的线性范围有限,把信号幅度压缩到一个较小范围的处理。
By adopting the vibration signal amplitude domain multi - parameter diagnosis method , the troubles of the valve on a triplex pump can be recognized accurately 采用振动信号幅值域多参数(如峭度指标、裕度指标和脉冲指标等)诊断法,可较准确地判别三缸泵泵阀的故障。
Judgment of the point of zero passage is the key factor involved , and a higher sampling frequency should be adopted when the method is applied on situations of large signal amplitude 其中过零点判定为关键技术,当用于信号幅值较大场合时应尽量提高信号采样频率。
Because the self - oscillation , the dynamic accuracy of the servo system is not only correlative with servo system parameters but also influenced by the input signal amplitude , frequency and the system self - oscillation state 由于自振荡状态的存在,伺服系统的动态精度不仅与伺服系统的参数有关,还受到输入信号幅值、频率以及自振荡频率的影响。
Secondly , the common noncoherent - integration monopulse radar angle - measuring method is analysized in the weighting viewpoint , it is equal to the linear weighting on the result of single pulse angle measuring using signal amplitude of sum channel 采用加权的观点分析了常规的单脉冲雷达非相参积累测角方法,指出其实质相当于对单次脉冲测角的结果用和通道信号幅度进行线性加权。