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NCO_Test
- 代码是对通信中的NCO模块的仿真，基于QUARTUSII9.0软件，代码编译成功，并且功能仿真已经实现-Code NCO module communication the simulation, based QUARTUSII9.0 software, code compiled successfully, and the functional simulation has been achieved
Gps_c_code_nco
- 在GPS接收机本地NCO及CA码产生，生成超前码，即时码和滞后码。-generate NCO and ca coce in gps receiver，generate E_P_L code.
cordic1
- cordic硬件实现，主要是实现正余弦，也可以用作NCO混频中，实现解调功能-failed to translate
NCO
- 指输出频率与输入控制电压有对应关系的振荡电路(VCO)，频率是输入信号电压的函数的振荡器VCO，振荡器的工作状态或振荡回路的元件参数受输入控制电压的控制，就可构成一个压控振荡器。-Refers to the output frequency and input voltage control oscillation (VCO) circuits, corresponding relationship with frequency is a function of the input signal
VHDL_Code
- 描写nco的完整程序，采用很简介的算法，对大家应该很有用-The complete program descr iption nco, using a very brief introduction of the algorithm, we should be very useful
FPGA_trainning2013A
- 在EDA实验课上面，自己编写的NCO程序，可以产生出比较真实的正弦波、三角波以及锯齿波，用VHDL程序编写，有modelsim仿真textbench程序-On EDA experiment, oneself write the NCO program, can produce more real sine wave, triangular wave and sawtooth wave with VHDL programming, have the modelsim simulation text
ca_code
- nco的产生原理的相关代码；软件无线电、直接数据频 率合成器（DDS，Direct digital synthesizer）、快速傅立叶变换（FFT，Fast Fourier Transform） 等的重要组成部分，同时也是决定其性能的主要因素之一，用于产生可控的正弦波或余弦波。随着芯片集成度的提高、在信号 处理、数字通信领域、调制解调、变频调速、制导控制、电力电子等方面得到越来越广泛的应用-nco the generation principle of the relevant code s
NCO_sine_gen
- 用Simulink中NCO模块产生正弦信号的程序，自己写的，采样率180MHz，正弦频率70MHz，可以直接运行。-Using Simulink module generates a sinusoidal signal of NCO program, sample rate 180MHz, sinusoidal frequency 70MHz, can be directly run.
eetop.cn_FYP_V2
- 基于cordic算法的nco仿真完整matlab程序-nco cordic algorithm simulation
nco
- 利用数字振荡器产生一个正弦波。修改参数可以修正弦波频率幅度相位。-Using the digital oscillator generates a sine wave. Modified sine wave frequency parameters can be modified amplitude and phase.
The-Phase-Locked-Demodulation-
- 利用Altera公司推出的FPGA开发工具DSP Builder，对锁相解调算法中的主要部件：数控振荡器(NCO)、计算反正切的CORDIC模块和FIR低通滤波器进行了单独设计和仿真，最终完成了锁相解调系统的整体设计。-Designed and simulated major components of phase-locking Demodulation Algorithm independently, including: Number Controlled Oscillator(NCO)、
dds
- NCO，同时产生cos和sin信号。quartus -NCO, while producing cos and sin signals. quartus II
Filtro-3-vias
- This a model of a QPSK modulation system for transmission over a bandpass channel with fc = 100 Hz and B = 30 Hz and AWGN at the receiver. SRRC fi lters with excess bandwidth α = 0.18 are employed. The receiver includes an NDA timing recovery lo
nco_program
- 数字控制器频点调整，包括频点上移动或者向下移动的程序-digital nco
NCO_test
- FPGA的压控振荡器NCO完整Verilog工程代码，测试输出1KHZ sin波。signaltap抓取没问题。-VCO NCO complete FPGA Verilog code engineering, test output 1KHZ sin wave. signaltap crawl no problem.
NCO
- 基于FPGA的DDS设计，通过外接DA转换器输出稳定的正弦波，方波和三角波，可单独产生时钟，不必借助硬件连接，包含寄存器程序，累加器程序和时钟发生电路等，以及顶层设计原理图-The DDS FPGA-based design, through an external DA converter output stable sine wave, square wave and triangular wave, can produce a single clock, without the help
my_nco-(1)
- A basic Direct Digital Synthesizer consists of a frequency reference (often a crystal or SAW oscillator), a numerically controlled oscillator (NCO) and a digital-to-analog converter (DAC) [3] as shown in Figure 1. The reference oscillator provid
NCO_DDS
- 自己写的代码，用了NCO核组合的DDS，测试过，希望对大家有所帮助-Write your own code, using a combination of NCO nuclear DDS, tested, we hope to help
dpll_fixpt
- a simulink model for DPLL with NCO
codegen
- GPS接收中关于码的产生、通道的选择、码DCO-code generate、tracking channel、code nco