Method for determination of sampling frequency of routine monitoring of water quality;
水质常规监测采样频率确定方法研究
Simulation of software sampling frequency adaptive algorithm for reducing spectrum leakage;
一种减小频谱泄漏的采样频率自适应算法仿真研究
The effect of the sampling frequency on the time averaging characteristics of integrating sound level meter;
采样频率对积分声级计时间平均特性影响的研究
Influences of sample frequency and delays on tracking system;
采样频率、系统延迟对跟踪系统稳定性能的影响
The protect function can be achieved in the improvement of sample frequency.
在雷达伺服系统中采用全数字化技术时 ,控制计算的主要时间使用瓶颈就出现在采样延时上 ,提高了采样频率就提高了控制计算的速度 ,从而有利于各种保护功能的实现。
However,the synchronous change of sample frequency and switching frequency makes the filter design complex,meanwhile the digital realization of engineering becomes difficult as the gain of controller and modulator vary with the sample frequency.
随机开关频率脉宽调制方法在较宽频率范围可以获得均匀的频谱特性,但是由于数字化实现中采样周期同步随机变化,使得滤波器设计复杂,而且控制器的增益和调节器的设计需要随着采样频率的变化而变化,使得工程化实现困难。
In this paper, the principle of high speed and high precision frequency sampling is presented.
讨论了高速、高精度频率采样的基本原理;分析了量化噪声对测量误差的影响;提出了采样器建立和保持时间对测量误差影响的问题;导出了考虑采样器建立和保持时间后时间量化误差的概率密度函数,为量化误差的校正奠定了理论基础。
In the frequency sampling method the value of transition band samples, which are usually obtained by consulting a table, must be determined in order to make the attenuation within the stopband maximal.
频率采样技术是 FIR数字滤波器设计的常用方法之一。
This paper deduces the function of stopband attenuation on the order of filter and the sampled value of transition band,according to the features of designing FIR filters with frequency sampling technique,and optimizes it with immune algorithm.
针对频率采样技术设计FIR滤波器的特点,推导出阻带衰减关于滤波器阶数和过渡带采样值的优化函数,并具体设计了免疫算法对其优化求解。
The paper introduces an adaptive predictive algorithm of sampling rate for electric power system.
针对电力系统中频率变化导致的数据采集和测量误差,文章提出一种对电力系统进行交流采样的一种自适应频率预测算法,为采用DSP技术准确估计交流信号的采样频率提供了可行的计算方法。
After analyzing the spectrum of the FSK signal,FFT detection technic based on undersampling was put forward,and a new method to calculate original spectrum,upper frequency and lower frequency was presented,the selection of sampling rate and the transformation of spectrum after sampled were analyzed,and the frequency resolution and detecting accuracy were studied.
对铁路轨道移频信号的频谱进行了分析,根据其频谱特点,提出了基于欠采样的FFT检测方法,并给出了计算原始频谱和上下边频的新方法,分析了采样频率的选取以及欠采样前后信号频谱之间的关系,同时对频率分辨率和精度进行了研究。
The influences of shape,width and amplitude of structure elements on the performance of morphological filters,and the influences of vibration signal sampling rate on the size of structure elements were analyzed.
定量分析了形态滤波器设计中结构元素的形状、宽度、幅值等因素对形态滤波器性能的影响程度以及振动信号的采样频率对结构元素尺寸的影响,并根据数据分析结果得出了在对旋转机械振动信号进行降噪滤波处理时,形态滤波器中结构元素的形状及尺寸的一般设计规律。
A Method to Speed up Sampling Frequeny of AC6611 Multifunction Card
提高AC6611多功能卡采样频率的一种方法
Choice of Signal IF and Sampling Frequency in Software Radio
软件无线电中信号中频与采样频率选择
Design of an 8-Channel Audio Sampling Rate Converter and Its ASIC Implementation
8通道音频采样频率转换器设计与ASIC实现
On the Treatment of Data Acquisition Sampling Frequency in Fiber Optic Sensor Controlling;
光纤传感控制中数据采集采样频率处理分析
Sampling frequency and time constant of phase-locked amplifier were increased by using microcomputer.
采用计算机采样，提高了采样频率和锁相放大器的时间常数。
Adaptive Sampling Frequency Method to Reduce Target-Losing Rate of WSN
降低WSN目标失跟率的自适应采样频率方法
Influence of sampling frequency and sample size on turbulence statistics in open-channel flow measurements
采样频率及样本容量对明渠紊流统计值的影响
The left ventricular pressure , femoral arterial blood pressure and the ECG wave form are digitized at a sampling rate of 500 Hz by a 12 bit A/D converter.
籄/D转换器将LVP、BP、ECG信号数字化,采样频率为500Hz.
A 12bit 40MHz Pipeline Converter;
12位40兆采样频率流水线结构模数转换器
Trapping stiffness measurement with brownian motion analysis method at low sampling frequency
低频响及低采样频率下用布朗运动分析法测量光阱刚度
It can remove the interference of power supply more efficiently than the conventional one.
该方案通过跟踪周期性干扰信号的频率变化,微调采样频率,改善了自适应模板法滤波性能。
Analysis of PSF and image sampling frequency and quantization precision on edge location
点扩展函数与采样频率及量化精度对图像边缘的影响分析
Study on the Frequency of Sampling and the Controls Parameter of the Test System for Soil Adhesion Property;
土壤粘附特性测试系统采样频率及控制参数的研究
Research and Realization of a Method to Measure Frequency for High Frequency Signal Dependent on Low Sample Rate
低采样率下高频信号的测频方法的研究与实现
Methods of Signal Frequency Measurement and Implementation Based on Nonuniform Sampling;
基于非均匀采样的信号频率检测方法及其实现
An Algorithm for Improving Spectra Resolution of Irregular Sampling Signals
一种改进不规则采样信号频谱分辨率的算法
Implementation of Sampling Rate Conversion for Wideband Digital Down Conversion Based on FPGA
宽带数字下变频的采样率变换模块的FPGA实现
Frequency sampling-based method to design UWB pulse shapes
基于频率采样的超宽带脉冲信号设计方法