Ambient radio waves have largely been ignored as a potential power source until recently, because the power of a broadcast radio signal rapidly decreases with distance.
直到最近环境无线电波才格外受到重视成为一种潜在的电源，这是因为广播电台的无线电信号发电随着距离的增加而锐减。
Reference source outputs a stable reference signal which is independent of power supply voltage, temperature and process.
其输出的基准信号稳定，与电源电压、温度以及工艺的变化无关。
The analog part mainly includes power source, power control, signal generation, signal modulation, high voltage output control and feedback control circuit.
模拟部分主要包括电源、功率控制、信号产生、信号调制、高压输出控制和反馈控制电路。
The signal power supply that this thesis proposed is a frequency variable power source used in test field. This thesis concentrates on analysis and designing the nuclear part: Inverter.
本文的信号电源就是变频电源在测试领域的应用，本文就信号电源的核心逆变器部分做了详细的分析和设计。
The standard source is a power supply device which can provide appointed voltage and current signal, and is used widely in measurement and monitoring field.
标准源是一个可以提供指定电压电流信号的标准电源发生器，在计量、监测领域有着十分广泛的应用。
Hence we will require some form of power Amplifier (PA) to "boost" the signal power level from the source and make it big enough to play the music.
因此，我们需要某些形式的功率放大器(PA)来提高来自信号源的信号功率，使其足以播放音乐。
In this paper, a method evaluating small signal gain spectrum of optical fiber amplifier only using a small power broadband light source was proposed.
提出了一种用小功率宽带光源较精确测量光纤放大器小信号增益谱的方法。
The final basic cause that resulted in the failure is no working state monitoring signal and failure warning signal of power supply source of controlled silicon excitation device.
最终查出造成机组事故的根本原因是可控硅励磁装置供电电源无工作状态监视信号及故障报警信号；
Computer network power source and signal circuit's against thunder stroke protection.
计算机网络电源和信号线路的防雷击保护。
This paper introduces the frame of a welding power source based on Digital Signal Processor(DSP).
介绍了基于数字信号处理器（DSP）控制的焊接电源结构。
This system is composed of a programmable power source, a test circuit, a signal sampler, a signal conditioner and a Single Chip Microcomputer.
测试系统包括程控电源、测试回路、信号采集、调理电路和单片机数据采集接口电路等部分。
The accuracy grade of frequency collection is improved, the function modular to prevent lightning and electromagnetic disturbance of signal and power source is added.
提高了频率采集的精度等级，增加了信号及电源防雷击和抗电磁干扰功能模块。
This paper introduces the successful application of digital synthesis technique to three phase precision power signal source.
介绍数字合成技术在三相精密功率信号源中成功地应用。
Then it came the signal debug device, protecting shield and power source, computer connection, signal process.
随后，本文还简要介绍了信号调理器、保护屏蔽接地与电源、计算机接口、信号处理等。
The system by G-M tube, high-pressured module, signal conditioning circuit, power source module, monolithic integrated circuit and wireless transmission module is composed.
系统由G-M管、高压模块、信号整形电路、电源模块、单片机和无线传输模块等部分组成。
Railroad signal power system is a special supply power source for train running. The high reliability is required. Thus, its supervisor and control become very important.
铁路信号电源系统是专门给列车运营信号供电的，其可靠性要求非常高，因此，对铁路信号电源的监视和控制十分重要。
In this paper, a digital welding power source based on DSP(digital signal processor) has been developed, which is designed for CO2 welding.
本文以DSP（数字信号处理器）为控制核心研制了一套CO2焊接数字化弧焊电源。
System hardware circuit audio digital signal source achieve this functions: sound signals, sound intensity level control, data communications, liquid crystal display, alarm and power.
系统硬件电路包括音频数字信号源实现声音信号产生、数字声强级控制、多机数据通信、液晶显示和电源等模块单元。
An adaptive stochastic resonance algorithm is proposed and used in detecting the fault signal of intermediate frequency power source. The result is preferable.
提出了一种随机共振自适应算法，并运用于中频电源的故障信号检测，取得了较好结果。
The low power consumption digital true random source comprises a high speed random oscillator signal generator, an alternative oscillation stop control unit, a clock generator and a sampling unit.
它包括高速随机振荡信号发生器、交错停振控制单元、时钟发生器和采样单元。
The signal processing circuit comprises a power source circuit, an amplification regulation circuit and a judge circuit connected with the amplification regulation circuit.
信号处理电路包含，一电源电路、一放大整型电路，以及与放大整型电路连接的判决电路。
It is used in the applications of communication equipment including aircraft and the power source or signal transmission through the ground equipment (tank and armored vehicles).
该产品广泛应用在通信设备中，包括飞机和电源或信号传递到地面的设备(坦克和装甲车)。
The second system is tunable laser light source based on semiconductor optical amplifier(SOA), light output power and signal-to-noise ratio are improved effectively;
第二套系统采用的是基于半导体光放大器（SOA）的可调谐激光器做光源，有效的增加了光源的输出功率，提高了信噪比；
At last, we design an experimental system including signal source, power amplifier array and loudspeaker array. Some experiments of the directive property of loudspeaker array are completed.
最后，构建了一实验系统，该系统由信号源、功放阵列和扬声器阵列组成，并在实验室环境下完成了线阵列扬声器组的指向性实验和测试。
At last, we design an experimental system including signal source, power amplifier array and loudspeaker array. Some experiments of the directive property of loudspeaker array are completed.
最后，构建了一实验系统，该系统由信号源、功放阵列和扬声器阵列组成，并在实验室环境下完成了线阵列扬声器组的指向性实验和测试。
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