The raw acquisition& tracking signal is extracted by down-conversion from RF to IF, through analog to digital conversion. GPS天线信号到射频前端变换后的中频信号,再经模拟数字转换,便可得捕获与跟踪的原始信号。
The scratchpad also contains a configuration byte to set the desired resolution of the temperature to digital conversion. 便笺簿也包含一个配置字节设置温度的期望决议到数字式转换。
Effect of analog digital conversion and baud rate intercalation to laser atmospheric communication quality 模数转换与波特率设置对大气激光语音通信质量的影响
Integration type analog to digital conversion 积分型模拟数字转换
With the aid of mapping a 0-1 sequence of digital image on a point of the complex plane, a type of digital conversion method based on complex bases for encoding digital image is investigated. 利用数字图象的0-1序列与复平面上点的对应,针对数字图象编码问题,研究了一种基于复数基的数字转换方式;
According to this method, the system of the huge displacement induct instrument and displacement digital conversion instrument combine with industrial computer is made and is successfully realized in the control and width measurement of steel plate. 利用该方法所研制的大位移传感装置、位移/数字转换装置与工业控制计算机配合,成功实现了对钢板宽度的测量与控制。
Accuracy Test Method of Multi-pole Resolver to Digital Conversion System 多极旋转变压器轴角&数字转换系统精度测试方法
The function of the video server includes video signal acquisition with digital conversion, video data transmission, and communication with the PC video terminal. 视频服务器的作用是获取视频信号并数字化,然后与PC图像终端进行视频数据传输和通讯等。
Study on Digital Conversion and Adaptive Equalization Technologies in the Intermediate Frequency Digital Receiver 中频数字化接收机中数字变频与自适应均衡技术研究
Switch Capacitor circuits are widely used in digital conversion system. 在数字转换系统中,广泛采用了开关电容电路。
Analog-digital conversion based on timing signal 基于时间信号的模拟&数字转换
On Design a Multi-channel Analog-digital Conversion Devices 一种多路模数转换装置的设计
Circuit and program designs of many function modules including signal sampling, analogy to digital conversion, data transmission, LCD driving and network controlling have been introduced in detail. 详细介绍了数据采集和A/D转换、无线数据传输、LCD显示驱动、网络控制等功能模块的电路及程序设计。
An important method of analog/ digital conversion and compression code which is called adaptive delta modulation ( ADM) is discussed. 讨论模数转换和压缩编码的一种重要方法-自适应增量调制(ADM)的性能。
Analog-to-Digital Conversion Technology and Its Developing Trend 模拟/数字转换技术及其发展趋势
This paper introduces a data collection system, which microprocessor is a single chip microcomputer? It's bulk is decreased and it's resistance of interference is increased because of it's new serial interface analogue digital conversion and resuming circuit? 介绍了一种以单片机为微处理器的数据采集系统,系统中新型串行口AD转换器及复位电路的使用,使它的体积减小,抗干扰性能提高。
Data acquisition is to simple the pulse signal, make a analog to digital conversion, and store the continuous acquisition data into a microcomputer. 数据采集就是对脉冲信号采样、模数转换,将一段连续采集的数据存入微机。
This paper mainly aims at the peculiarities of iatrical video signal, applies the latest CMOS chip for digital conversion to design a special converter, and realizes the conversion of iatrical video signal into VGA signal, and thereby CRT monitor can be replaced by LCD. 针对医疗视频信号的特点,应用相关的数字转换芯片设计了一种转换装置,可以将医疗视频信号转换成VGA信号,从而实现用液晶显示器代替CRT监视器。
Method of Analog Digital Conversion with High-Speed and Converter 高速模数转换的方法及器件的实现
Then the author has also accomplished the high speed data acquisition of ignition voltage and ignition current by adopting the high speed analog to digital conversion device and the first in and first out memory device ( FIFO). 采用高速A/D转换器和先进先出存储器(FIFO),有效地实现了高速数据采集,实现了对点火电压、点火电流的采集。
In the part of video signal processing, the design is realized in the methods of analog to digital conversion, linear encoding and serialization. 在视频信号处理部分,主要是通过模数转换、线路编码和并串转换来实现的。
Process extension section includes analog to digital conversion and digital beam forming module. 处理分机部分包括模数转换和数字波束形成模块。
This system includes IPC, a microprocessor, digital-analog conversion circuit, voltage regulator circuit, a signal conditioning and analog to digital conversion circuit. 系统包括工控机、微处理器、数模转换器、稳压电路、信号调理电路和模数转换器几部分构成。
At last, the design and implementation of software is described in detail. The software is designed by C language and assembly language in modular structure, including analog to digital conversion, data processing, communication module, man machine interface, and so on. 还详细叙述了系统软件的设计与实现过程,本软件采用C语言和汇编语言设计,采用模块化结构,包括模数转换、数据处理、通信模块、人机界面等部分。
The issues about the based on the DSP of digital encryption telephone design and implementation. Firstly, the simulations of the speech signal acquisition, analog signals to digital conversion. And then, the acquisition of digital signal compression coding. 本课题提出基于DSP的数字加密电话的设计与实现。首先,实现模拟语音信号的采样,将模拟信号进行数字化转换,然后对采样的数字信号进行压缩编码。
The model of noise analysis and the measures of anti-jamming for amplifiers are also presented. Secondly, several detecting methods are introduced, including correlation detection, synchronous integrator, lock-in amplifier, sigma-delta analog to digital conversion. 介绍了放大器常用的噪声分析模型以及放大电路抗干扰的常用方法。其次探索了几种可以提高抗噪性能的检测方法:互相关检测,同步积分器,锁定放大器,∑-ΔAD转换。
The FPGA controls the signal conditioning, analog/ digital conversion, data storage and transmission as the controller chip of the front-end. 基中FPGA作为前端控制芯片来控制信号的调理、模拟/数字转换、数据的存储和传输。
Digital conversion unit is used Verilog HDL hardware description language through the Quartus II software platform designed, Main sequence detection, A/ D sampling control, CRC checksum function modules, such as Asynchronous Receiver Transmitter. 数字变换单元是采用Veriloghdl硬件描述语言通过QuartusⅡ软件平台进行设计的,主要包括序列检测、A/D采样控制、CRC校验和异步收发等功能模块。
The system includes sequential control circuits and digital signal communication circuits with the core of the FPGA, Butterworth low pass filter circuits and analog digital conversion circuits and so on. 该系统主要包括:以FPGA为核心的时序控制电路和数字信号通信电路、巴特沃斯低通滤波电路和模数转换等电路。
The signal waveform diagrams of the whole system and the analog to digital conversion of arbitrary waveform input signal are simulated and analyzed. 接着,对∑-△型光adc的信号波形图和对任意波形模拟输入信号的模数转换进行了仿真分析。