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RealizationofdigitaldownconversionbyFPGA
- 介绍在FPGA 器件上如何实现单通道数字下变频（DDC）系统。利用编写VHDL 程序和调用部分IP 核相结合的方法研究了数字下变频的FPGA 实现方法,并且完成了其主要模块的仿真和调试,并进行初步系统级验证。-Introduced in the FPGA device on how to achieve the single-channel digital down conversion (DDC) system. VHDL procedures and the use of the prepa
AC_Induction_Motor_Control_Using_the_constant_Vf_P
- 使用V/F原理的交流电机控制和简单的PWM算法 交流电机在连接到电源时只能以其额定速度运转，所以要改变转速必须改变电源频率。本篇应用文档展示了这些技术如何在AT90PWM3上简单的被实现，也说明了AVR RISC微处理器在电源控制方面的应用。-Induction motors can only run at their rated speed when they are connected to the main power supply. This is the reason why va
Fujistu_AC_INVERTER
- 富士通交流变频源代码例程，应用在富士通16位单片机上-Fujitsu AC variable frequency source code routines, used in the Fujitsu 16-bit microcontroller
RFSGStreamingWith5671
- 5671的流盘程序，不能直接使用RFSG的驱动，要使用上变频和Arb的程序。-5671 of the flow plate program can not directly use RFSG driver, to use the frequency and Arb process.
duc_ddc_system_generator
- 介绍了在xilinx环境中利用system generator设计数字上变频DUC/数字下变频DDC的流程，对于初学者很有帮助-introduced the design of DUC/DDC using system generator under xilinx, it s quite helpful to fresh
inverter
- 变频器原理描述，一本不可多得的好资料上传资料的详细功能、包含内容说明-inverter
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
A_number_of_high-speed_digital_radio_implementatio
- 一种高速数字电台数字上变频的FPGA实现-A number of high-speed digital radio implementation on the frequency of the FPGA
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
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.
test_5
- BPSK调制及解调的仿真程序,包括成形和上变频，较完整-BPSK modulation and demodulation simulation program, including forming and upconversion ,it is complete
duc
- 实现内插数字上变频 内插 低通滤波器的子程序 整个系统的调试-Upconverting interpolation interpolated digital low-pass filter of the subroutine of the entire system debugging
SSBTX
- 单边带调制完整建模，实现了希尔伯特变换，DDS，上变频，正交调制-Single sideband modulation of a complete modeling, implementation of the Hilbert transform, DDS, on the frequency, quadrature modulation
GPS-generation
- 研究了一种数字中频 GPS 信号生成方法。给出了数字中频信号数学模型，模型考虑了各种因素对信号的影响。通过导航电文分析，提出信号传播时延、多普勒频移以及信号入射方向的估计方法。给出了中频信号产生的流程，对其中时延的设置，信号的上变频、信号幅度设置以及方向信息的导入进行了阐述。对所生成的信号模型进行了仿真分析，给出了信号产生各个阶段的频谱，对所生成的信号进行了相关捕获。仿真结果表明频谱特征符合理论分析，能够被捕获并找出信号时延从而实现定位。证明该信号模型能作为信号源应用于 GPS接收机研制中。-】
1231243513up_convert_ofdm
- OFDM调制解调算法中的上变频算法以及matlab的实现方法-OFDM modulation and demodulation algorithm in the upconversion algorithm matlab implementation
ddc_matlab
- 这是关于wcdma数字上变频的matlab程序,通过抓取得到wcdma信号数字信息-this is a program about the ddc of wcdma,the wcdma digital information has been taken and saved
AD9857_DataSheet
- 讲述了上变频的相关原理以及其vertebi译码，和相关的编码-Tells the story of upconversion the relevant principles as well as its vertebi decoding, and the associated coding
4QAM_2.5GHz
- 一个用MATLAB编写的，上变频为2.5GHz的OFDM仿真程序，很好用的程序，适合学习OFDM初学者-A MATLAB prepared, the frequency of 2.5 GHz OFDM simulation program, very good procedures, suitable for OFDM beginners to learn
PskScyB
- 产生psk调制信号的源程序，并对信号进行成型滤波及上变频-generate PSK modulated signals, and the signals pass the shaping filter and DUC
work
- 本程序是关于卫星上下变频的简单的实现算法，首先产生双边带调制信号，与收本振混频后，通过低通滤波器完成下变频。再与发本振混频，通过高通滤波器后完成上变频-This program is a simple algorithm on the satellite and down-conversion, the first double-sideband modulation signal generated, after the close of the oscillator mixer, low-p