Description: 数字上变频DUC是与数字下变频ddc相对应的工作.目前实现方式主要有:专用芯片,通用DSP和FPGA实现三种.本程序即给出了XILINX公司的Digital Up Converter核心程序(IP CORE)以及响应的使用说明,对于从事雷达,无线通信的工程人员和研究者有很大用处.-DUC is a digital up-conversion and digital down conversion that corresponds to the work of ddc. Realize the current approach are: ASIC, DSP and FPGA generic realize three. This procedure is given that the company XILINX core Digital Up Converter program (IP CORE) and to respond to instructions, for radar, wireless communications, engineers and researchers have great usefulness. Platform: |
Size: 305152 |
Author:周严 |
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Description: 实现计算机图形学中对直线的几种变换，如剪切，旋转，缩放，平移。并实现用键盘上下左右键控制变换，用TAB键切换变换形式。-The realization of computer graphics in a straight line of several transformations, such as shear, rotate, zoom, pan. And about using the keyboard keys to control up and down conversion, with TAB key to switch the form of transformation. Platform: |
Size: 2048 |
Author:邓冰 |
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Description: fm中频调制中实现数字正交上变频和正交下变频。-fm frequency modulation in digital quadrature up-conversion and down-conversion quadrature. Platform: |
Size: 1024 |
Author:季艳中 |
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Description: 徐景周先生用VC++编写的集简繁文字转换、文件加密、控件注册、位图转换为文本、文件隐藏到位图、文件分割器、控件注册器、注销用户、定时关机、弹出、关闭光驱等为一体的工具集软件。通过这个软件的源代码您可以学到位图菜单、自画式按钮的制作，不规则形状窗口的产生，动画对话框，系统托盘程序的实现等一系列技术。-Mr. Xu Jingzhou using VC++ to prepare the set Simplified text conversion, file encryption, control register, bit map is converted to text, documents hidden in place plans, document segmentation, and control register, and write-off users, shutdown timer, pop-up, shut down CD-ROM, such as one set of software tools. Through the software' s source code you can learn the menu plan in place, since the production of paint-type button, the emergence of irregular window shapes, animation, dialog, system tray, such as procedures for the realization of a series of technical. Platform: |
Size: 922624 |
Author:300 |
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Description: The ADS7843 is a 12-bit sampling analog-to-digital con-
verter (ADC) used to drive 4-wire touch-screens to serial
interfaces by ratiometrically converting two differential in-
put signals. The ADS7843 also produces an accurate output
with the first conversion cycle once powered up. Because of
this feature, the ADC can be powered up and down continu-
ously, thus, enabling designers to conserve energy in low
power applications such as Personal Digital Assistants (PDA),
where the number of conversions is limited but a fast and
accurate response is required on the first conversion. To
maximize energy conservation, the ADS7843 incorporates a
Pen Interrupt Request feature (PENIRQ), which enables
designers to fully control the power-down operation when
interfacing with Micoprocessors (MPU). Figure 1 is a sim-
plified flow diagram for a PDA showing how PENIRQ is
used to assist in controlling power-down operations.-The ADS7843 is a 12-bit sampling analog-to-digital con-
verter (ADC) used to drive 4-wire touch-screens to serial
interfaces by ratiometrically converting two differential in-
put signals. The ADS7843 also produces an accurate output
with the first conversion cycle once powered up. Because of
this feature, the ADC can be powered up and down continu-
ously, thus, enabling designers to conserve energy in low
power applications such as Personal Digital Assistants (PDA),
where the number of conversions is limited but a fast and
accurate response is required on the first conversion. To
maximize energy conservation, the ADS7843 incorporates a
Pen Interrupt Request feature (PENIRQ), which enables
designers to fully control the power-down operation when
interfacing with Micoprocessors (MPU). Figure 1 is a sim-
plified flow diagram for a PDA showing how PENIRQ is
used to assist in controlling power-down operations. Platform: |
Size: 48128 |
Author:Chen Song |
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Description: 这是一个相对完整的OFDM通信系统的仿真设计，包括编码，调制，IFFT，上下变频，高斯信道建模，FFT，PAPR抑制，各种同步，解调和解码等模块，并统括系统性能的仿真验证了系统设计的可靠性。
-This is a relatively complete simulation of OFDM systems design, including coding, modulation, IFFT, up and down conversion, Gaussian channel model, FFT, PAPR suppression of synchronization, demodulation and decoding modules, and systems, including system performance simulation verifies the reliability of system design. Platform: |
Size: 9216 |
Author: |
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Description: 这是一个相对完整的OFDM通信系统的仿真设计，包括编码，调制，IFFT，上下变频，高斯信道建模，FFT，PAPR抑制，各种同步，解调和解码等模块，并统括系统性能的仿真验证了系统设计的可靠性。
-This is a relatively complete simulation of OFDM systems design,including coding,modulation,IFFT, up and down conversion, Gaussian channel model, FFT, PAPR suppression of synchronization, demodulation and decoding modules, and systems, including system performance simulation verifies the reliability of system design. Platform: |
Size: 12288 |
Author: |
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Description: 单片机多功能调试助手一款集串口/USB/网络调试、进制转换、字模与数码管字型码制作、常用校验值计算、UNICODE码转换、位图输出C文件等众多功能于一身的综合型调试软件，最值得庆幸的是该软件会一直保持更新，并支持在线升级功能，这样大家手头上的单片机多功能调试助手总是最新的！
单片机多功能调试助手与其他调试软件有什么优势：
一直保持为单文件状态，不会因为需要保存配置信息而创建其他其他文件，所以该软件非常容易携带。
一直体贴着开发者，所有重要的配置在关闭该软件时将会得到保存，重启软件后会重新导入以前的配置信息，免去重复选择或填入数据的操作。
集成了串口/USB/网络调试功能，并在串口/USB/网络调试的过程中，该软件提供了监视和多项发送功能。通过使用监视端口的功能就可以清晰地分辨出发送与接收的数据的顺序；通过使用多项发送功能就可以省去重复删除或填写待发送数据的步骤。
在线升级功能是该软件的最得意之处，理所当然地也是开发者最倍受关注的功能。-SCM multi-function debugging assistant combines a serial port/USB/network debugging, into the system transition, font and digital tube fonts, common calibration value production code calculation, conversion, bitmap UNICODE yards output C files, and many other functions in one integrated debugging software, the most fortunately this software will always keep updating, and to support online upgrade features that you have on hand single-chip multi-function debugging assistant always up-to-date!!!!!
SCM multi-function debugging and other assistant what advantage: debugging software
Keep for single file status, not because of the need to save configuration information and create other other documents, so the software is very easy to carry.
The developers have been thoughtful, all of the important configuration in shutting down the software will be preserved, restart again after the software configuration information before the import them, to repeat selection or fill in the opera Platform: |
Size: 656384 |
Author:赵文选 |
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Description: 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. Platform: |
Size: 1024 |
Author:乔一新 |
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Description: 在CListCtrl的基础上增加了快速排队功能，并在CListHeadCtrl上面使用遮罩算法实现上下排序图标的转换-Increase on the basis of the CListCtrl fast queuing and CListHeadCtrl above mask algorithm to achieve the conversion of the up and down sort icon Platform: |
Size: 1931264 |
Author:吴哲 |
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Description: 相对完整的OFDM通信系统的仿真设计，包括编码，调制，IFFT，上下变频，高斯信道建模，FFT，PAPR抑制，各种同步，解调和解码等模块.
-Relatively complete OFDM communication system simulation design, including coding, modulation, IFFT, up and down conversion, the Gaussian channel modeling, FFT, the PAPR suppression, synchronization, demodulation and decoding modules. Platform: |
Size: 15360 |
Author:longye |
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Description: fpga上下变频混频实现，其中CIC采用多种方法设计，自己花两个星期编写，中文注释，浅显易懂-fpga up and down conversion mixer implemented which CIC using a variety of methods designed, he spent two weeks writing notes in Chinese, easy to understand Platform: |
Size: 2048 |
Author:胡昊波 |
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Description: 单片机1主要负责接收ADC0809转换后的数据，并通过比较产生控制信号并将信号发送给单片机2，而单片机2主要负责接收信号然后通过信号控制两台步进电机的运作从而达到"设计一控制系统，假设有一个太阳能电池板，为了使电池板最大限度的接受光照强度，通过控制器调节电池板的角度使电池板始终正对光线。采用步进电机作为角度调整装置，使系统能上下和左右旋转"目的.-The operation of the microcontroller 1 is mainly responsible for receiving data after the ADC0809 conversion, and by comparing the generated control signal and the signal is sent to the microcontroller 2, and single-2 is mainly responsible for the reception signal and then through a signal to control the two stepper motor so as to achieve " design a control system assume a solar panel to the battery plates to maximize acceptance of the light intensity, the battery plates always light. stepper motor angle adjustment device, so that the system can be up and down and left and right by the controller to adjust the angle of the battery plates rotation purposes. Platform: |
Size: 2048 |
Author:LiuNianci |
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Description: Switching power supplies offer higher efficiency than traditional linear power supplies. They can step-up, step-down, and invert. Some designs can isolate output voltage from the input. This article outlines the different types of switching regulators used in DC-DC conversion. It also reviews and compares the various control techniques for these converters. Platform: |
Size: 12288 |
Author:vasanth |
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Description: 实现完整的4CPM(h=1/2)调制解调程序，包括消息序列生成，串并转换，升抽样成形滤波，数字上变频，多项式非线性效应，AWGN信道，到接收端数字下变频，降采样，匹配滤波，接收端基带信号星座图。-Message sequence generation, serial-parallel conversion, up sampling shaping filter, digital upconversion, polynomial nonlinear effects, AWGN channel, to the receiver digital down-conversion, down-sampling, the matched filter, the receiving end the baseband signal constellation. Platform: |
Size: 4096 |
Author:wuhuayang |
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Description: 实现16QAM完整的调制解调系统，包括基带信号串并转换，星座图映射，升抽样成形滤波，升采样半带滤波，数字上变频，功放的多项式非线性效应，加性高斯白噪声信道，接收端下变频，降采样，匹配滤波，绘制接收端星座图。-16QAM modulation and demodulation realize the complete system, including the baseband signal string and conversion, constellation mapping, sampling shaping filter liter, half liter sampling with filtering, digital up-conversion, amplifier polynomial nonlinear effects, additive white gaussian noise channel, the receiver end down-conversion, down-sampling, matched filtering, draw the receiver constellation. Platform: |
Size: 9216 |
Author:wuhuayang |
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Description: 抽取:(接收端)
中频信号IF 20M(采样率是50M) 下变频信号 MIX_O 1M(50M) 采用CIC滤波器进行降采样率。
插值:(发送端)
基带信号上变频到1M，采样率是2.5M，采用CIC滤波器进行升采样率处理。
注释：升采样率或者降采样率不会改变原始信号的中心频率，但是频谱分布会发生改变。-Extraction: (receiver)
IF signal 20M (sampling rate is 50M) down-conversion signal MIX_O 1M (50M) using CIC filter down sampling rate.
Interpolation: (sending side)
Baseband signal up to 1M, the sampling rate is 2.5M, using CIC filter for sampling rate processing.
Note: The up-sampling rate or down-sampling rate does not change the center frequency of the original signal, but the spectral distribution will change. Platform: |
Size: 9699328 |
Author:曾锦 |
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Description: ofdm系统仿真，完整的OFDM通信系统的仿真设计，包括编码，调制，IFFT，
%上下变频，高斯信道建模，FFT，PAPR抑制，各种同步，解调和解码等模
%块，并统括系统性能的仿真验证了系统设计的可靠性(OFDM system simulation, complete OFDM communication system simulation design, including coding, modulation, IFFT,
% up and down conversion, Gauss channel modeling, FFT, PAPR suppression, all kinds of synchronization, demodulation and decoding.
%, and the overall system performance simulation of the system reliability) Platform: |
Size: 41984 |
Author:1135775675@qq.com |
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Description: matlab仿真MPSK代码文件，保证能运行，包含awgn信号和低通滤波，上变频下变频。(Matlab simulation MPSK code file to ensure that it can run, including AWGN signal and low-pass filter, up conversion and down conversion.) Platform: |
Size: 1024 |
Author:1149405612 |
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Search - Up/Down-Conversion