讨论了全息光学头聚焦误差信号检测的基本原理。
The principle of the detection of the focusing error signal in a holographic optic head is dis - cussed.
利用数字控制技术对位置信号误差角进行了实验检测及校正。
It has made experiment detection and rectification with signal control technology for the position signal error.
在实际通信系统中当信号处于深衰落时，最小均方误差(MMSE)检测器经常失去对信号的相位跟踪。
It is noted that the minimum mean square error (MMSE) detector often loses phase to lock a desired signal when the desired signal dips into a deep fade.
用光电容积描记器检测误差信号，用电螺管作为液压机构的推动器。
The error signal is detected by the transmittance photoelectric plethysmograph. An electromagnetic solenoid is adopted for use as the hydraulic actuator.
提出的过零点检测算法，较好解决了脉搏信号时域特征点参数多，分析复杂，误差较大的问题。
The algorithm of measuring zero-crossings can better solve the problems that the characteristic parameters of the pulse signal are complicated in the time field and the measuration errors are greater.
本课题是在虚拟仪器信号设备自动测试系统的研发基础上，针对此系统的故障检测与误差校准功能进行开发。
It is necessary to improve test accuracy. On the basis of the virtual instrument signaling test system, this paper research for the system fault detection and error calibration function.
当转速升高时，信号幅值有所提高，从而导致了燃烧相位检测误差的降低。
Engine speed elevation reduces the detection error of combustion phase because of the correspondingly strengthened signal.
汉字和图形相结合。对增量编码器的脉冲信号沿变化进行倍频检测，提高分辨精度，避免计数误差和累积误差。
The edge transition of pulses from incremental encoder can be detected with double frequency to improve measurement precision, and to avoid measurement errors and accumulative errors.
讨论了匹配滤波器的基本原理及匹配滤波器应用于信号幅值检测时滤波器系数的确定方法并进行了检测误差分析。
Its principle and the method with which to determine the filter coefficient when it is used for detecting signal amplitude is discussed.
文章主要分析了最小均方误差(MMSE)自适应检测器应用于CD MA系统的性能，建立了系统信号模型，给出了计算误码率的公式。
The performance of minimum mean square error (MMSE) adaptive detector applied in CDMA system is analyzed in this paper. The signal model is set up, and the relevant bit error rate formulas are given.
降低了系统误差，提高了特征信号的检测精度。
The system error is reduced and the monitoring precision is further increased.
降低了系统误差，提高了特征信号的检测精度。
The system error is reduced and the monitoring precision is further increased.
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