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16_FIR
- 16阶FIR滤波器--本设计用VERILOG HDL语言串行DA算法实现16阶有限频率响应滤波器!-16-order FIR filter- this design language VERILOG HDL serial DA algorithm limited frequency response of 16-order filter!
vhdl
- FIR滤波器的性能参数 设计一个滤波器最基本的就是性能参数的,决定着滤波器的实际功能.比如阶数,截至频率。 本文滤波器设计参数 ①输入,输出数据宽度10位 ②阶数为4阶的线性相位FIR滤波器, ③类型:带通 -FIR filter performance parameters The design of a filter is the most basic performance parameters, determines the actual filter fu
65jie
- 串并FIR滤波器设计:并行FIR滤波器具有速度快、容易设计的特点,但是要占用大量的资源。在多阶数的亚高频系统设计中,使用并行结构并不合算,但亚高频系统需要较高的处理速度,而串行架构往往达不到要求,因此,结合串并这两种设计方法的长处,在使用较少的硬件资源的同时实现了较高的处理速度,这里说明一种65阶八路并行、支路串行FIR滤波器的设计(实际使用了1个乘法器,8个乘累加器,一个累加器)。-String and FIR filter design: parallel FIR filter with a
firfilter
- FIR滤波器:自定滤波器的类型(低通,高通或带通)、设计指标(通带截止频率、通带波纹、阻带截止频率、阻带衰减) 1、根据指标选择合适的窗函数,用窗口设计法设计符合指标的FIR滤波器;并验证其性能是否满足预定指标。 -FIR filters: Custom filter types (low pass, high pass or band-pass), design specifications (passband cutoff frequency, passband ripple, st
xb
- 用汉宁窗设计一个FIR高通数字滤波器,满足以下参数要求:通带边界频率ωp=0.7π,通带内衰减函数αp=0.4dB;阻带边界频率Ωs=0.4π,阻带内衰减函数为αs=55dB。-With the Hanning window design an FIR high-pass digital filter to meet the requirements the following parameters: passband edge frequency ωp = 0.7π, pass-band at
frehp
- 基于频率抽样方法实现Ⅰ型FIR数字高通滤波器-Based on the frequency sampling method to achieve type Ⅰ FIR digital high-pass filter
Study_on_Key_Technologies_of_n4-DQPSK_Modulation_a
- 本文首先研究可4一DQPsK调制解调系统中调制部分的基本原理和各个模块的设计方案,重点研究成形滤波器和直接数字频率合成器 (DireetoigitalFrequeneySynihesis,简称DDS),并针对各个关键模块算法进行matlab设计仿真,展示仿真结果。其次,研究调制解调系统解调部分的基本原理和各个模块的设计方案,重点研究差分解调,数字下变频和位同步算法,也针对其各个关键模块进行算法的Matlab设计仿真。然后用Matlab对整个系统进行理论仿真,得出结论。在此基础 上,采用超高速
quaddecoder_verilog_ise11.2_used_09042010
- Two simple Quadrature decoder and Counter build in a XILINX XC9536 CPLD. This Core is coded in Verilog and contains the compete Project file and the fitted quad.jed File. The Pinout is descr ipted in the Constrained file quad.ucf. To use them, y
digitaldownconversionbygpga
- 研究了高倍抽取的数字下变频设计,重点分析了基于级联积分梳状滤波器和级联半带滤波器的多级抽样频率算法。-Extraction of the high-powered digital down-conversion design, the focus of a cascaded integrator comb filter based on cascaded half-band filter and the multi-level sampling frequency algorithm.
AD9857_b
- 芯片AD9857资料,英文版,此芯片可以实现基带处理,成型滤波,上变频等功能,希望对大家有用 好好看哦-Chip AD9857 information, in English, this chip can achieve baseband shaping filter, the frequency and other functions, we hope to be useful well Kane
AD9954
- 设计背景:近年来现场可编程门阵列( FPGA) 技术得到了迅速的发展和广泛的应用, 其资源容量、工作频率以及集成度都得到了极大的提高, 使得利用FPGA 实现某些专用数字集成电路得到了大家的关注, 而基于FPGA 实现的直接数字频率合成器即DDS(Direct Digital Synthesizer)则更具其优点, 有着灵活的接口和控制方式、较短的转换时间、较宽的带宽、以及相位连续变化和频率分辨率较高等优点, 其也为设计者在此基础之上实现电路集成提供了另一种方法,同D/ A 转换器和低通滤波器(
DDS-program
- DDS芯片中主要包括频率控制寄存器、高速相位累加器和正弦计算器三个部分(如Q2220)。频率控制寄存器可以串行或并行的方式装载并寄存用户输入的频率控制码;而相位累加器根据 dds 频率控制码在每个时钟周期内进行相位累加,得到一个相位值;正弦计算器则对该相位值计算数字化正弦波幅度(芯片一般通过查表得到)。DDS芯片输出的一般是数字化的正弦波,因此还需经过高速D/A转换器和低通滤波器才能得到一个可用的模拟频率信号。-The chips mainly includes DDS frequen
digital-filter
- Verilog语言综合的固定频率的数字滤波器,用于滤除夹杂在固定频率信号上的杂波信号,包含了Quaetus工程和仿真文件。-Verilog language integrated fixed-frequency digital filter for filtering out mixed signals at a fixed frequency noise on the signal contains Quaetus engineering and simulation files.
DDC_matlab
- 实现数字变下频的matlab程序,CIC,HB,FIR滤波器代码都在其中-Realize digital variable frequency under matlab, CIC, HB, FIR filter code in it
filter
- 设计一个16阶的低通FIR滤波器,对模拟信号的采样频率Fs为48KHz,要求信号的截止频率Fc=10.8kHz,输入序列位宽为9位(最高位为符号位)。-The FIR number filter example, designs a 16 ranks of low the FIR filter is a 48 khzs to the sample frequency Fs that imitates signal and request the closing of signal the fre
ra3_lib
- serial FIR filter with 2048 tap. Clock runs 4048 times faster than sampling frequency to finish FIR filter calculations before the next sample. Filter coefficients can be loaded in ROM as .hex file. Suitable for room reverberation and high order filt
cheb_s
- 用以滤除直流工频干扰的四阶切比雪夫高通滤波器传递函数。-four stage Chebyshev high-pass filter transfer function which is Used to filter out the DC frequency interference.
FILTER
- 一个工作频率(采样频率)100M的,截止频率10M的FIR滤波器,一共是108阶。 一共四个文件,滤波器的实现文件FILTER.v,测试平台FILTER_TB,matlab生成测试向量,和matlab读取输出数据分析。 经过了测试,是可用的-A working frequency (sampling frequency) 100M, cutoff frequency 10M FIR filter, a total of 108 bands. A total of four documen
Filter
- 该代码主要实现环路滤波器矩阵的设计,环路滤波器的功能主要是在鉴相器的输出端衰减高频误差分量,以提高抗干扰性能;在环路跳出锁定状态时,提高环路以短期存储,并迅速恢复信号。-The code mainly realizes the design of loop filter matrix, Loop filter function is mainly in the output of the phase discriminator attenuation of high frequency erro
CIC-interpolation-filter
- 多级插值CIC滤波器,3级、过采样率为2的8位CIC插值滤波器,系统工作时钟的频率是数据速率的2倍 -Multi-stage interpolation CIC filter 3, an oversampling ratio of eight CIC interpolating filter, the operation clock frequency of the system 2 is twice the data rate