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IS-95/CDMA2000基带成形滤波器的实现
- IS-95/CDMA2000基带成形滤波器的实现 IS-95滤波器的实现： 本次设计采用转置型结构，并用展开技术将字串行架构转换成字并行处理架构，从而提高运行的速度。本次设计中采用展开因子J=4的展开转换技术。设输入数据为filter_in，输出数据为filter_out，则其展开因子J=4的并行处理系统如下图所示 ,IS-95/CDMA2000 base-band filter shaping to achieve IS-95 filter to achieve: the desig
FFTbutter
- FFT的旋转因子算法和蝶形处理器VHDL代码实现-The rotation factor FFT butterfly processor algorithm and VHDL code
fft
- 基于VHDL语言编写的FFT程序，256点，旋转因子存在自己编写的ROM里面，乘法器和数据存储采用的是IP核-FFT-based program written in VHDL, 256 points, there is rotation factor which I have written the ROM, multiplier, and data storage is used in IP core
FPGA_SPI_FLASH
- 本应用指南讲述 Spartan-3E 系列中的串行外设接口 (SPI) 配置模式。SPI 配置模式拓宽了 SpartanTM-3E 设计人员可以使用的配置解决方案。SPI Flash 存储器件引脚少、封装外形小而 且货源广泛。本指南讨论用 SPI Flash 存储器件配置 Spartan-3E FPGA 所需的连接，并且介绍 SPI 模式的配置流程。本指南还提供一种实用工具，用于在原型开发过程中对选定的 STMicroelectronics 和 Atmel SPI 器件进
div8
- 分频系数为8，分频输出信号占空比为50 的分频器-Frequency factor of 8, sub-frequency output signal duty cycle to 50 of the prescaler
FPGA_design_of_the_impact_factor_of_the_clock
- 影响FPGA设计中时钟因素的探讨,能帮组FPGA的设计-FPGA design of the impact factor of the clock，and can help the FPGA design
RTL
- 用VHDL实现求两个数的最大公因数。数据路径和控制路径。-Seeking to use VHDL to achieve the greatest common factor of two numbers. Data path and control path.
cic_intp_64_four
- 4阶CIC内插滤波器，内插系数64，Verilog版本，数字下变频-4-order interpolating CIC filter interpolation factor of 64, Verilog version of the digital down-conversion
clkdiv
- 占空比可调 分频系数 都可随意设定的分频器，语言为Verilog HDL-Duty cycle factor can be freely adjustable frequency divider set the language for the Verilog HDL
FFT
- 2点的碟形算法，其中包含了旋转因子乘法器，这是一种高效的复数乘法器.-2point dish method, which includes the rotation factor multiplier, which is a highly efficient complex multipliers.
jiaocuofenpin
- 用硬件语言写了一个由8/9分频构成的无限不循环小数分频器，分频系数k=260/31-Written language with the hardware a 8/9 frequency divider consisting of an infinite non-recurring decimal, frequency factor k = 260/31
cFFT
- CFFT is a radix-4 fast Fourier transform (FFT) core with configurable data width and a configurable number of sample points in the FFT. Twiddle factors are implemented using the CORDIC algorithm, causing the gain of the CFFT core to be differen
ccmul
- FFT旋转因子，旋转因子是蝶形运算的组成部分，是数字信号处理FFT算法的基础部分-FFT twiddle factor, rotation factor is an integral part of the butterfly, digital signal processing is a fundamental part of FFT algorithm
SPA
- 首先介绍了LDPC码的校验矩阵和其因子表示方法，然后利用二分图对和积解码算法进行了详细的描述，最后给出了信度传播概率译码算法详细步骤，并对关键公式作了证明-This paper,first introduces the check matrix and the factor graph of LDPC,then describes the sum-product algorithm by using the factor graph,and finally presents the deta
ofdmbaseband
- the OFDM PHY is adaptive therefore it supports multiple schemes BPSK, QPSK, 16-QAM and 64-QAM for data carriers’ modulation. The constellation diagrams are gray mapped and shows the magnitudes I and Q (In-phase and Quadrature) components of e
bfly_r2dit
- 这是一个用verilog编写的FFT的蝶形因子程序，它与下面的文件构成整个FFT程序-This is a written with verilog program FFT butterfly factor, file it with the following procedures constitute the whole FFT
freqdiv
- A frequenzzzy divider that divides the clock signal rate with a factor of 25.
VHDL
- vhdl分频代码，只需改变里面的常数即可，改变分频系数-vhdl frequency code, just a constant which can be changed to change the frequency factor
12frequency
- 分频系数为12，输出信号的占空比为50 -Frequency factor of 12, the output signal duty cycle is 50
Addr_Generator
- 其中start是开始信号，上升沿启动控制单元；CLK是工作时钟；CtrlAddr是读取控制字时的地址；CtrlData是读取的控制字；Reading是读信号；EOP是本次AD采样完成信号，只有当AD1和AD2均完成后EOP才为高；EN是允许信号，启动分频器、地址发生器；N是分频系数；Addr1和Addr2分别是AD1和AD2数据存储的起始地址；NUM1和NUM2分别是采样点数。 控制字分别表示分频系数为2，AD1起始地址为1，采样点数5，AD2起始地址为3，采样点数为4。 -Where