设计了基于模拟滤波器和基于数字锁相放大技术的两种红外气体传感器的信号处理方法。
Two signal processing methods, one based on analog filters, the other based on digital lock-in amplifying technique, are developed and analyzed.
理想的软件无线电电台要求对天线接收的模拟信号经过放大后直接采样，但由于技术所限很难实现，而多采用中频采样的方法。
The ideal software radio requires the sampling system directly samples the amplified signal which was received by the antenna, but it can't be implemented due to the limit of technology.
本文介绍一种基于频率变换的时间放大技术，可用于正弦周期信号的相位精确测量或延迟时间测量。
This article introduces a technology of time amplifier based on frequency converter. It can be used for phase detection of sine period signal or determination of time delay.
实现真正意义上的分子影像学技术的三大要素为分子探针、信号放大和高灵敏探测仪。
There are three main molecular imaging techniques: molecular probes, signal amplifications and supersensitive survey meters.
本文提出一种利用低频锁相放大器测量高频信号的混频-锁相检测技术。
The mix-lookin detection technique for high frequency signal measurement with low frequency look-in amplifier is presented.
为实现光纤一体化设计及高功率输出，采用MOPA技术，对信号光进行放大。
MOPA technology is applied to achieve all fiber structure and high power output, the optic signal is amplified.
在微电流测量技术中，主要是考虑在有效抑制噪声的条件下对从微电流转换来的电压信号放大方法的研究。
The most important technique is voltage amplifier design in study of micro current measurement on condition that noise is restrained.
结合数字合成脉冲的技术特点及信号特征，提出利用恒流源差分放大电路具有非线性工作区的特点实现高频脉冲信号调理的方法。
Considering the characteristics of digital-synthesis technology and pulse signal, this paper proposes a method to implement the adjustment of high-speed pulse using differential amplifier.
基于掺铒光纤放大器(EDFA)的波分复用技术(WDM)的出现，使得在同一根光纤中能传输多个波长的光波信号。
With the WDM (wavelength Division Multiplexing) technology based on EDFA (Erbium Doped fiber Amplifier) developing, it is possible to use multiple wavelengths to transmit over the same optical fiber.
模板扩增和信号放大相结合的有PCR-基因扫描技术、PCR安捷伦芯片实验室技术；
PCR-Gene scan assays and PCR Agilent chip chamber combine the template Amplication and the signal magnification.
该电路应用斩波技术，大大降低了低频噪声，实现了对低频微弱信号的放大。
The circuit employs chopper technique which can effectively reduce the low frequency noise and amplify the weak signals.
根据功放的实测AM-AM、AM-PM特性，采用时域分析方法，并应用带通非线性理论和数字信号处理技术，分析了宽带数字调制信号激励下的射频功率放大器非线性失真特性。
The method is based on AM-AM?AM-PM characteristics of a nonlinear power amplifier and application of band -pass nonlinearity theory and digital signal processing techniques.
锁相放大技术对被测信号进行窄带放大，锁相放大器结合示波器输出了被测信号的周期变化部分，实现了光热法测量中微弱信号的测量。
By narrowing the bandwidth of the signal and amplifying it by a lock-in amplifier, the fluctuating components of the signal can be shown on an oscillograph with lock-in amplifier.
在语音信号的采集、放大及A/D转换等方面，也选用TI公司的产品：TLC274和TLC320AD50C，网络处理芯片则采用目前技术很成熟的芯片RTL8019AS。
Which both produced by TI corporation, TLC274 and TLC320AD50C are used to gather or enhance and A/D transformation of the voice signal. The network part uses a common chip, RTL8019AS.
模板扩增和杂交以及信号放大相结合的有pcr- ELISA技术、实时荧光pcr技术、生物芯片技术。
PCR-ELISA and real fluorescence PCR associate the template Amplication and hybridization with the signal magnification.
模板扩增和杂交以及信号放大相结合的有pcr- ELISA技术、实时荧光pcr技术、生物芯片技术。
PCR-ELISA and real fluorescence PCR associate the template Amplication and hybridization with the signal magnification.
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