搜索资源列表
cicfilter
- 基于多速率信号处理原理,设计了用于下变频的CIC抽取滤波器,由于CIC滤波器结构只用到加法器和延迟器,没有乘法器,很适合用FPGA来实现-This article describes the design of a CIC filter based on the signal processing theory.Because of its structure only using the adder and the delay devices without multiplier,it is
All-DigitalQPSK-Demodulator
- Altem公司quartus II 8.1开发环境下,完成了中频全数字解调器的FPGA实现,并对数 字下变频、载波同步、位同步等解调器的核心模块设计进行了详细的分析和说明,给出 了实现框图和仿真波形。同时在本设计中应用了Altera公司的NiosII软核处理器技术, 用于载波的大频偏校正和解调器各个部分的监测和控制。最后给出了QPSK中频全数字 解调器关键性能指标的测试方法和测试结果,测试结果表明本设计达到了预期的性能指 标要求。-The Algorithm is con
DDC_sin_cos_2k
- 下变频的各种matlab仿真程序,都是已经编译好,而且已经实现的,很方便-Down-conversion of a variety of Matlab simulation program are compiled, and has been achieved, it is convenient
CIC-NCO-HB-FIR
- 数字下变频的论文,包含各个模块的设计,其中有CIC,HB,FIR,NCO等模块和源代码。-Digital down conversion papers, including the design of each module, including CIC, HB, FIR, NCO, modules and source code.
c13
- CIC滤波器的插值运算,并可以实现数字下变频的整个算法的研究,与仿真-design and simulink
DDC
- 这是我做数字下变频的论文中用到的源代码,包含CIC,计数器,积分器等模块。-his is what I do digital down conversion of the paper used in the source code, including CIC, counter, the integrator module.
matlab
- 完整的matlab程序实现数字下变频,ddc_out为主程序。内有详细的注释,易懂。-Complete matlab program digital down conversion. ddc_out is the main program. There are detailed notes, and easy to understand.
mcys
- 基于matlab仿真雷达信号的脉冲压缩过程。产生一个线性调频信号,接受雷达回波中频采样频率为40MHz,中频进行正交下变频。在13.5km出有一个点目标,仿真雷达的脉冲压缩处理。-Matlab simulation of the radar signal pulse compression process. A linear FM signal, to accept the radar echo IF sampling frequency of 40MHz, IF quadrature down
Digital-transfer-DDC-and-DUC
- 数字变频器的设计,实验中用到的所有完整的工程文件: (1)数字上变频的设计,完整的工程文件包含: rrc_cic_impulse.mdl rrc_cic_data.mdl qpsk_modulate.mdl (2)数字下变频的设计,完整的工程文件包含: received_if.mdl demod.mdl halfband.mdl-Digital conversion: 1.DUC:rrc_cic_impulse.mdl
down-conversion
- 基于软件无线电的数字接收机中的下变频结构的程序-Based on software radio frequency conversion program under the digital receiver
xy7z.ZIP
- 基于HSP50214B的AM信号数字下变频设计HSP50214B based on the AM signal digital down converter design-HSP50214B based on the AM signal digital down converter design
Frequency-conversion
- 实现信号的上变频和信号的下变频,经过仿真实验后确定正确。-Signal up-conversion and signal down-conversion, and after a simulation to determine the correct.
Cqiweibakema_o
- 设雷达信号是码宽为0.5微妙,中心频率是10MHz的7为巴克码2PSK信号,接收的雷达回波中频采样频率为为40MHz,中频进行正交下变频。假设在13.5km处有一个点目标,仿真该雷达的脉冲压缩处理。 已通过测试。 -Let the radar signal is yards wide 0.5-subtle, the center frequency of the the Buck the code 2PSK signal, the received radar echo IF samplin
Idddc_30mF
- 中频70M,30M带宽LFM信号,采样率为102.4M,,数字下变频后,还进行了三倍抽取,最后还得到I,Q两路信号 -IF 70M, 30M bandwidth LFM signal, the sampling rate 102.4M, under digital variable frequency after also carried out three times extracted, and finally also received the I and Q signals
vDDCe
- verilog语言实现的数字下变频设计。在ALTERA的QUUARTUS ii下实现。实用,好用。,已通过测试。 -verilog language digital down-conversion design. Of ALTERA QUUARTUS ii. Practical, easy to use. , Has been tested.
Dsystemtestasi
- 数字下变频的matlab仿真源源程序,自动生产图形可直接使用。 -Matlab simulation source source digital down conversion, automatic production of graphics can be used directly.
AD6636jieshouji
- 利用AD6636实现中频数字信号处理,包括数字下变频,dds-AD6636 IF digital signal processing including digital down conversion, dds
DDC
- 数字下变频的FPGA实现方法,十分容易理解,初学者很容易掌握,很好的学习资料-Digital down conversion FPGA implementation method is very easy to understand, beginners can easily master
code-of-GNSS-sofe-receiver
- 本书面向应用与编程设计、在参考国内外论著的基础上,结合作者自己的研究成果撰写。内容上由浅人深,第一章介绍了GNSS软件接收机的研究背景和各种卫星导航系统。第二章介绍了信号处理的一些相关概念。第三章介绍了卫星运动的基本理论。第四章研究GNSS信号,包括伪随机码信号、导航电文,着重以GPS和Galileo系统为例进行讨论。第五章研究了GNSS接收机的前端技术,包括天线和信号下变频原理。第六章探讨卫星信号的捕获技术。第七章讨论卫星信号的跟踪、解调和伪距计算。第八章探讨导航定位解算方法。第九章简要介绍了
QPSK_costas
- 完成经过正交下变频之后的QPSK信号的costas环- Costas ring fitting the QPSK signal after completion of a quadrature downconverted