传统的AM调幅信号解调方法是同步检波和包络检波法。
Traditional way of AM signal demodulation is envelope detector or synchronism detector.
提出了一种利用钻柱轴向振动调幅信号实现岩性识别的方法。
A new lithology identification method based on axial amplitude modulation signal of drill string is proposed.
首先描述了同频调幅信号的射频多相位混叠模型,提出了一种多相位映射的新方法。
Then a new method called the multi-phase mapping is put forward to rebuild the mixture matrix of no more than two homo-frequency signals received by a sensor.
利用数字采样系统的特性,克服了用数字方法解调调幅信号的固有困难,提出了一种新的数字方法来解调这类信号。
Taking advantage of the characteristics of digital systems, a new digital method is given in this article to overcome the difficulties in demodulating AM signals using digital methods.
分别针对间谐波数值仿真信号、调幅信号及电弧炉电流作间谐波分析,结果表明:该方法抗噪声能力强、检测精度高,尤其对时变性较强的调幅性间谐波信号具有强适应性。
The simulation results show that the method has high antinoise capability, higher detection accuracy and the better adaptiveness to the amplitude inter harmonics signal of time change especially.
在每个频道中,组合视频信号被当作调幅(AM)信号传输,声音信号作为FM(调频)信号传输。
The composite video signal is transmitted as an AM signal and the sound as an FM signal on these channels.
为什么在隧道中调频广播比调幅广播的信号要好一点?
实现信号的调制解调功能,包括各类调制如ask(调幅),PSK(调相),FSK(调频)。
Realize signal modulation and demodulation functions, including various types of modulation such as ASK (amplitude modulation), PSK (phase modulation), FSK (FM).
调幅广播可以发送更远的距离,但它的声音质量却不及后来一种被称为频率调制的无线电信号处理方式优越。
AM radio can be sent over larger distances, but the quality of the sound is not as good as a later kind of radio signal processing, called frequency modulation.
应用该方法对理想混沌信号与调幅正弦脉冲进行分离以及对实测的湖底混响与调幅正弦脉冲进行分离。
With this method applied the separation of the AM sine pulse from the ideal chaotic signal and from the measured reverberation of the lake bottom are implemented.
相位调制,调相:一种电子调幅,为了传递包含在信号中的信息,而使载波的相位改变。
A type of electronic modulation in which the phase of a carrier wave is varied in order to transmit the information contained in the signal.
文中在校准应用研究中采用田口方法,根据数字信号源的频率、调幅及调频试验典型值推导出全量程校准公式。
The Taguchi method is studied to derive calibration formulae of frequency and amplitude modulation of digital signal generator in whole range in this paper.
调频比调幅更适合于传送立体声、电视节目的伴音信号。
FM is also better able to transmit sounds in stereo than AM.
它将有关低频脉冲信号对中频调幅后,利用被放大的调幅波电流对人体进行治疗。
It will give patients treatment by means of the amplified amplitude modulating wave current that can be obtained form medium frequency amplitude modulated by the low frequency pulse signal.
只需要连接好天线和音频输入,并依靠放在附近的一台调幅收音机来检验信号。
Connect your antenna and audio input source, and monitor the signal on a nearby AM radio.
本文在分析了几种SPWM调制方法的基础上,将基于对称采样法的SPWM调制算法应用于本设计中,产生了可调频调幅的正弦波脉宽调制信号。
The SPWM algorithm using symmetrical sample in this controller, can alter its frequency and amplitude. The good performance of the BLDC Motor controller using DSP is verified by the experiment.
通信仿真平台的任务是对调幅、调频、单边带、二进制振幅键控、二进制频移键控、二进制相移键控、正交相移键控等七种通信信号的调制和解调进行建模和计算。
The target of the communication system flat is modeling and calculating to modulation and demodulation of seven kinds of signals:AM, FM, SSB, 2ASK, 2FSK, 2PSK, 2QPSK.
标准信号发生器(图1标准信号发生器框图)的输出信号电平能准确读数,所加的调幅度或频偏也能用电表读出。
Standard signal generator (Figure 1 standard signal generator diagram) of the output signal level accurate readings, the increase in the rate of transfer or shift can also read the meter.
标准信号发生器(图1标准信号发生器框图)的输出信号电平能准确读数,所加的调幅度或频偏也能用电表读出。
Standard signal generator (Figure 1 standard signal generator diagram) of the output signal level accurate readings, the increase in the rate of transfer or shift can also read the meter.
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