frequency demodulation
英
美
频率解调；鉴频
双语例句
- Frequency demodulation based on delayed autocorrelation and its application in gear fault diagnosis
时延自相关解调频原理及其在齿轮故障诊断中的应用 - LFM Signal Parameter Estimation Method Based on The Frequency Interval Halving Demodulation
基于频率区间二分解调的LFM信号参数估计方法 - Pilot beacon devices are available in the frequency shift and demodulation modes.
在频移和解调模式下，飞行导向设备是有效（可实现）的。 - Using ultraviolet fluorescent lamp as the light source, combining frequency modulation and demodulation technology can achieve a UV communication system with low date rates.
以紫外荧光灯为光源，结合调频和鉴频技术可实现低速率下的紫外通信。 - A circuit for frequency multiplication and phase demodulation realized by high-density in system programmable logic device
用高密度在系统可编程逻辑器件实现倍频鉴相输出电路 - The Research of the Experiment of the PLL-FM and Frequency Demodulation
锁相调频与鉴频实验的研究 - A fault diagnosis system is developed on the principle of high frequency resonance and demodulation technique.
利用脉冲共振解调振动测试技术研制了一套滚动轴承故障诊断系统。 - The effect of modulation frequency on phase demodulation is analyzed in sinusoidal phase modulating ( SPM) interferometry for displacement measurement. A rule for selecting modulation frequency is presented.
针对正弦相位调制（SPM）干涉测量技术用于位移测量时，调制频率对干涉信号相位解调的影响，提出一种调制频率的优化选择依据。 - This Measuring System's hardware consists of microprocessor, microwave resonator and its constant temperature control, frequency synthesizer and demodulation, signal transfer etc.
整个检测仪设备硬件由微处理器、微波谐振腔与恒温控制、射频检测、信号转换等功能部分组成。 - Conventional Doppler vibration measurement methods generally involved complicated frequency or phase demodulation system.
在传统的激光多普勒测振方法中，频移信号的检测通常需要具有比较复杂的频率或相位解调系统。 - Difference Frequency Effect in Demodulation and an Integrative Algorithm for Zoom Demodulation/ Spectrum Analysis
解调分析中差频现象的理论分析及细化解调/频谱分析集成算法 - In non-cooperative communication systems such as spectrum surveillance and electronic interception, the receiver must estimate the parameters of direct spread spectrum sequence ( DSSS) signal, including baud rate, chip rate and carrier frequency for demodulation.
在频谱监测、电子侦听等非协作通信中，接收机要对直接扩频序列信号进行侦收，必须要首先估计信号的参数，包括波特率、码片速率和载波频率等。 - A Method of Bi carrier Frequency Difference Sidetone for Coherent Demodulation
一种双载频差侧音相干接收解调方法 - The signal detection scheme based on triple eigen frequency modulation/ demodulation was designed. The sample period was 1/ 3 that of the eigen frequency modulation, and the system bandwidth was increased effectively.
设计了三倍频调制/解调数字闭环信号检测方案，使采样周期是基频调制方案的1/3，有效提高了系统带宽。 - The functions of visual detection, demodulation of chroma signal, phase demodulation, frequency demodulation, frequency mixing and AGC of double differential amplifier and the application of these functions are introduced.
介绍了双差分放大器的视频检波、色度信号解调、鉴相、鉴频、混频和AGC等许多功能和在电视机中的主要用途。 - SAR Moving Targets Detection Based on Radon-Ambiguity Transform and Frequency Demodulation Technique
基于Radon-Ambiguity变换和解调频技术的SAR运动目标检测 - Power Frequency Signal Two-way Modulation and Demodulation Based on Distribution Network
基于配电网的工频信号双向调制和解调 - The impedance matching, amplifying in band-pass, magnify and frequency demodulation, pulse shaping methods have been used to transform the signals;
运用阻抗匹配、带通放大、幅度和调频检波、脉冲整形等方法对标签感应信号进行变换； - In order to overcome the disadvantage of frequency shift signal demodulation in time domain and frequency domain and realize the reliable, accurate demodulation of frequency shift signal, a frequency shift demodulation method based on Gabor transformation is proposed in this paper.
为克服单一时域和频域移频信号解调时的缺点，实现移频信号的可靠、准确的解调，本文提出了一种基于Gabor变换的移频信号的解调方法，并进行了计算机仿真。 - Angle Modulation Limits of a Noisy Frequency Demodulation Phase Lock Loop
有噪FM解调锁相环路的角调制界限 - Compared with normal acceleration signal, the outline signal of high frequency acceleration coming from demodulation is of more capacities for canceling noise and reveals faults nature more directly.
加速度高频包络解调信号虽属低频范围，但与直接采集的加速度信号相比，具有更强的除噪能力，更能直接反映故障本质。 - By employing a frequency demodulation method of FM signal, the Doppler freguency shift of laser is gained, the time resolution of this method is just one sampling period, and both the Robust and convergent of this method are excellent, its precision is good enough.
使用了调频信号的一种数字化解调方法实现多普勒频移数据的处理，时间分辨力为一个采样间隔，具有鲁棒性好、过程收敛、结果精确等特点。 - And at same time, I choose the inner pulse coding method on data transmission for the signal of the time setter, use frequency modulation and unrelatable demodulation, and apply error checking to the error control.
确定了时间装定信号的内脉冲编码数据传输方法；选择了信号频率调制及非相干解调方法和检错重收的差错控制方法。 - The frequency variation in random phase undulation and Max. Root mean square error in the range of measured frequencies to measure frequency undulation are discussed through the analysis of the phase delay filter which uses a phase delay method and the frequency measuring technique with double loop demodulation.
分析了利用相位延时方法的相位延时滤波器和双回路解调的测频技术，讨论了随机相位波动产生频率的变化，以及衡量频率波动的测量频率范围内的最大均方根值误差。 - A visible light communication OFDM ( Orthogonal Frequency Division Multiplexing) modulation and demodulation simulation system has been built successfully, by adding complex channel coding and data interleaving module.
通过添加复杂的信道编码和数据交织等模块，成功搭建了一个可见光通信OFDM（正交频分复用）调制解调仿真系统。 - Its function is to amplify the received signal, frequency conversion, demodulation processing, and finally to the base-band circuit for data analysis.
它将接收到的信号进行放大，频率转换，解调等处理，最后送到基带电路进行数据分析。 - In the fiber laser sensor system, the beat frequency demodulation method is a very simple and full-electronic optical signal demodulation technique.
在光纤激光传感系统中，拍频解调方法相比其它传统的解调方法来说，是一种相当简单、全电子的光信号解调技术。 - According to the features of uplink-signal, the parameters such as the quantity of transmitting information, carrier frequency, demodulation scheme, the rate of transmitting information and the transmission bandwidth will be determined.
根据上行链路信号特点可确定该应答器的传输信息量、载波频率、解调方案、信息传输速率和传输带宽等参数。 - In the low SNR ( signal-noise-ratio) and great doppler frequency shift to accomplish coherent demodulation and Doppler frequency speed measurement, the carrier wave frequency acquisition must be done, the key is how to estimate the frequency-deviation.
要在低信噪比大多普勒频偏下实现相干解调及多普勒测速首先要对接收到的信号载波进行快速捕获，其中的关键是如何快速准确地估计出多普勒频偏。 - The simple and inexpensive frequency-meter is able to achieve high-precision of demodulation, and it can reduce the cost of the sensor largely. In brief, the optical fiber laser sensor based on beat frequency demodulation has broad market prospects.
简单且价格低廉的频率计就能够实现高精度的解调，极大程度上降低了传感器的成本，具有广泛地市场前景。