信号采样

基于MATLAB的信号采样与重构的实现

Realization of Signal Sampling and Reconstruction Based on MATLAB

用DSP实现脉冲调制输出和信号采样。

DSP has been used to achieve pulse modulation output and signal sampling .

基于SOD的无线传感器信号采样策略

Signal sample strategy based on send-on-delta for wireless sensor network

用CCD实现快进、慢出高速模拟信号采样

Employing Charge Coupled Devices to Fast-in 、 Slow-out High Speed Analog Signal Captured

压缩感知（CS：CompressedSensing）理论作为一种新的信号采样理论框架，一经提出就受到各领域专家学者的广泛关注。

Compressed Sensing theory is a newly signal sampling framework , it has attracted a lot of experts and scholars from many fields .

对信号采样转换成数字信号后送交DSP进行信号处理，判断是否需要发出报警信号。

The signal is sampled and converted into digital then transmitted to the DSP to be processed and judge whether need issued a warning signal .

本文将先进的DASP（DataAlias-freeSignalProcessing）抗混叠信号采样技术运用到现代测试仪器平台中。

The advanced DASP ( Data Alias - free Signal Processing ) technology is applied to modern test instrument platform .

在系统具体实现中，依据Nyquist欠采样理论，采用带通信号采样。

Concrete while realizing in the system , Nyquist Band-pass Sampling was adopt .

数字式频率引导采用对接收信号采样序列进行FFT运算处理实现对目标的频率捕获，具有显著的优越性。

While digital frequency leading implements capture of target frequency through the operational processing of received signal sample sequence by FFT , it has obvious superiority .

模拟信号采样的TSR程序实现

TSR Program Performance of Simulated Signal Sampling

嵌入式轴承检测系统从功能上大体分为三部分：上位机ARM控制端、下位机DSP算法处理端和信号采样端。

The system is composed of three parts : the host ARM control site and the slaver DSP algorithm processing site as well as the signal sampling and A / D conversion site .

压缩感知（CompressedSensing，CS）作为一种新的信号采样理论突破了Nyquist采样定理对采样速率的限制。

As a new sparse signal sampling theory , the compressed sensing ( CS ) breaked though the restrictions about the sampling rate of the Nyquist sampling theorem .

文中部分符号如下：Fc为载波频率，Fd为符号率，Fs为信号采样频率。-。

Paper , some of the symbols is as follows : Fc is carrier frequency , Fd for the symbol rate , Fs is sampling frequency .

波形合成采用直接对带限中频信号采样，用高速DAC合成方法实现。

Waveform synthesis was made with the method of sampling directly the bandlimited IF signal and transforming the discrete values by high speed DAC .

模拟前端的高速信号采样是软件无线电技术的基础，同时宽带高速速率的传输要求使得OFDM技术成为新一代数字移动通信的核心技术。

One foundation of SDR is high-speed signal sampling in analog front end . Also the demand of broadband high-speed transmission makes OFDM a core technology for new generation digital mobile communication systems .

软件部分主要有FPGA信号采样、动态滤波、包络检波、对数压缩、非均匀校正；DSP完成图像的空间滤波、帧相关、灰阶映射和存储。

The software section performs signal sampling , dynamic filtering , envelope detection , logarithmic compression , and non-uniformity correction in the FPGA , and image interpolation , amplification , noise removal , storage in the DSP .

针对数字信道化接收机的FPGA实现，本文对相关的技术进行了研究，这其中包括：信号采样理论、数字下变频原理、数字正交混频技术，信号抽取理论等。

According how to implement channelized digital receiver under the FPGA platform , we studied the related technology : including the theories on signal sampling 、 digital down converter 、 Digital orthogonal frequency mixing , Signal decimation and so on .

不仅如此，该接口电路配合适当的DSP核心软件和上层计算机系统软件，完全可以应用于其它领域，如医学诊断、工业无损检测等领域的信号采样与分析。

Moreover , this interface circuit cooperates with proper DSP kernel software and upper computer systems software , can apply to other fields , for instance the medical diagnosis , industry lossless examining and measuring , etc , samples and analyses signal .

Candes、Donoho和陶哲轩等创立的非奈奎斯特信号采样和处理体系&压缩感知（CS）理论试图解决上述问题。

Candes , Donoho , and Tao founded the non-Nyquist signal sampling and processing system & compressed sensing ( CS ) theory attempts to solve the above problems .

结果表明，若EP潜伏期变化为EP信号采样间隔的整数倍，则DLMP算法对这种变化的估计是无偏估计。

The results of the analysis indicate that , if the EP latency change is an integer multiple of the sampling interval , the DLMP algorithm gives an unbiased estimate of the latency change ;

直接采样微波辐射计用高速、宽带ADC代替常规微波辐射计的混频、本振等模拟硬件电路，直接对射频信号采样，是一种结构简单的新型微波辐射计。

The direct sampling microwave radiometer ( DSMR ) is a novel microwave radiometer with simple structure , which substitutes wide-band , high-speed ADC of conventional microwave radiometer for mixer , local oscillation analog circuit and so on , direct samples the radio-frequency signals .

通过分析CIC滤波器、HB滤波器和多相滤波器的特点和性能，将它们与抽取器相结合，对A/D转换后的数据进行抽取，降低了信号采样率，减轻了后续DSP处理基带信号的压力。

Through analyzing the features and performances of CIC filters , HB filters and multiphase-filter , we combine them with decimators and decimate the A / D data , thus reducing the digital signal rate and the load of DSP when processing the base band signal .

相对传统的数据压缩方法，压缩感知因其以远低于Shannon-Nyquist采样频率对信号采样而被认为是高效的数据压缩方法。

Compared with traditional data compression method , compressed sensing is considered to be an efficient data compression method because its sampling rate is much lower than the Shannon-Nyquist sampling theorem .

雷达中频信号采样及数字相干检波的工程实现

Radar IF Signal Sampling and Engineering Implementation of Digital Coherent Detection

信号采样过程中的栅栏效应会引起一定的误差，在高精度采样时，必须要考虑这个问题。

The Picket Fence Effect will influence the sampling result .

非均匀采样周期信号采样时间偏差估计算法研究

Study on Sampling Time Offset Estimation Algorithm for the Nonuniformity Sampled Periodic Signals

宽带信号采样的关键技术研究

Study on Key Techniques in Sampling for Wide-Band Signal

科氏流量计测量信号采样与实时算法的实现

Implementation of Measuring Signal Sampling and Teal Time Algorithm in Coriolis Mass Flowmeter

信号采样及频谱分析在线信道测试中的应用

Application of Signal Sampling and Spectrum Analysis to the Test of Wire Channel

失真信号采样技术研究

Study of the Technique for Acquiring the Distorted Signal