信号变换

本文采取了信号变换（模拟前处理）的测量方法，包括RC有源、无源陷波电路、RC低通滤波电路、双T滤波网络，开关电容滤波及外差测量法等。

In this paper , signal conversion method ( processing before analogue ) are used including RC active and on active notching filters , RC low pass filters , double T filters , switched capacitor filters and heterodyne measurement method , etc.

信号变换-多元校正方法对复方甲硝唑注射液的分析

Analysis of Co. Metrozole Injection by the Signal Conversion Combined with Multicomponent Calibration Methods

在DSP上实现PCM-FSK/DTMF信号变换

Signal Transformation of PCM-FSK / DTMF on DSP

ND检调机主要由三部分组成：控制部分、信号变换部分、机械动作部分。

The ND examination-adjustment machine mostly including : control section , signal alter section and mechanical movement section .

通过实现信号变换，不需要昂贵的辅助仪器就可把高速CCD电视摄像机和标准TV监视器、录像机联合起来使用。

By implementing the signal transformation , we can use the high speed CCD video camera in combination with standard TV monitors and videocorders and we do not need additional expensive equipments .

首先，通过离散的小波变换（DWT）或小波包变换（WP）将高光谱信号变换到特征域进行光谱分解。

Hyperspectral signals are firstly transformed to feature domain by using a discrete wavelet or wavelet packet decomposition strategy .

在总结运载火箭低温加注现行控制技术的基础上，介绍了低温加注控制的特点，并阐述了参数测量及信号变换、传输技术、分布式控制技术、数字PID调节技术和应用。

The features of the cryogenic filling control was introduced besed on the summarization of the current cryogenic filling control technology . Meanwhile , the parameter measurement and signal transformation , control and its application were also be described .

IJF编码是将数字基带信号变换成无符号间干扰和抖动的基带波形信号。

IJF coding refers to converting digital baseband signal into Intersymbol Interference and Jitter Free baseband signal .

分析了Shannon正交小波的频谱特性和信号变换的特点，借助快速傅里叶变换实现Shannon正交小波变换和逆变换。

In this paper the spectral and the transforming properties of Shannon orthogonal wavelet are analyzed . The algorithm of Shannon orthogonal wavelet transform and reverse transform is realized by using fast Fourier transform .

其特征是不要外接偏置电压源，而由一个特殊隔离变换器将输入逻辑信号变换为能快速开通或关断IGBT模块的驱动电力。

Its feature is that the input logical signal is converted to drive power by a special isolated converter , which makes a IGBT module turn on or off quickly , without any other biased voltage sources .

介绍了一种利用AD2S90芯片实现的感应同步器信号变换电路。

This paper introduces a type of circuit which can digitize signal of inductosyn by AD2S90 .

GeraldKaiser首度提出了物理小波的概念，并通过解析信号变换将这一概念拓展到Hilbert空间。然而G.尝试物理小波处理实际数据及性质；

The conception of ' physical wavelets ' was first introduced by Gerald Kaiser , who had expended real signal to complex Hilbert space by analytic signal transform . Physical wavelets are used to analyze practical signal acquired by experiments .

通过利用频率自由度进行信号变换，提出一种跨频率置换和求反（CFPI）的预编码技术。

A cross-frequency permutation and inversion ( CFPI ) precoding technique is proposed , which transforms signal via additional degrees of frequency freedom .

测量电路将系统比例测量法与正交锁相放大技术相结合，把激励信号变换为直流电压提供ADC的基准电压及乘法器的分母控制电压，减小激励信号幅值波动在系统测量结果中引入的误差。

The measurement circuit combines the systemic scaling method and analog orthogonal locked-in amplifier . The excitation signal is transformed into direct voltage , which provides the reference voltage of analog-to-digital converter and the denominator control voltage of multiplier . The errors caused by amplitude fluctuation are minimized .

一种新型的感应同步器信号变换电路

A New Type of Circuit Which can Digitize Signal of Inductosyn

转换后信号变换宽度宽，消光比性能好。

The converted signal has wide range bandwidth and good extinction ratio .

热电阻阵列红外图像模拟器的驱动信号变换

Transformation of the driving signal of IR image simulator using thermal resistance array

单片机程控的信号变换

Signal Transforming Programmed by a Single - chip Microcomputer

开关是微波信号变换的关键元件。

Switches are key components with convert microwave signals .

形态滤波属于非线性信号变换处理，它利用信号的局部特征对信号进行修正。

Morphological filters perform nonlinear signal transformations that locally modify geometric features of signals .

遥测用全电子安全系统引信的信号变换盒设计

Design for Signal Transform Box of Electronic Safety and Arming System Fuze for Telemetering

该模块采用顺序等效采样法，可以将高速宽带信号变换成低频信号。

This module transforms high-speed broadband waveform into low frequency signal by sequential sampling method .

对放大电路及其信号变换电路进行硬件设计和软件编程。

Magnifying circuit and signal transform circuit are designed as well as software is programmed .

傅立叶将信号变换为频域形式，却不能对信号做局部化描述。

Fourier can represent the signal into frequency domain but can not make located description .

单片机测控系统中的信号变换

Signal Converting with Monolithic Monitoring System

程控放大器能够把这样的信号变换成与测量或控制电路相匹配的输入电压。

Programmed amplifier is able to convert these signals into input voltage which match with testing circuits .

信号变换装置是飞行试验中状态测量和信号变换的重要设备。

The signal transform device is an important states measuring and signal transforming facility in the flight experiments .

在测量与仪表技术领域，V/F转换器作为一种信号变换和处理技术，应用日益广泛。

V / F converters are increasingly applied in measurement and instrumentation field as a method of signal conversion and processing .

因此，即使输入信噪比比较低，信号变换后的小波系数也要大于噪声的小波系数。

Although the energy of noise is bigger than that of the signal , its wavelet coefficients are smaller than that of signal .

传感器是一种能按一定规律将感受到的非电量信号变换成电信号或其他形式信号的检测器件。

Sensor is a kind of test device that can convert the non-electric signals into electrical signals or other signals by a certain law .