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fft
- 加窗的FFT/IFFT完整计算c++程序,数字信号处理及软件无线电系统开发必备!-Windowing FFT/IFFT calculation complete c++ program, digital signal processing and software radio systems development required!
4G-Extended_RF_Performance_with_DPD
- 4G(LTE) - Extended Radio Frequency Performance with Digital Predistortion
adigitaltimingrecoveryschemefortdmadigitalmobiler
- a digital timing recovery scheme for tdma digital mobile radio
BT-Basics
- an overview of Bluetooth® wireless technology and instructs users on how to establish Bluetooth connections . Bluetooth wireless technology is an inexpensive, short-range radio technology that eliminates the need for proprietary cabling betwe
cnv6adv1
- For a wide range of applications such as digital mobile radio, Digital Simultaneous Voice and Data (DSVD) or speech storage, it is desirable to provide a discontinuous transmission of speech-coding parameters. Advantages can include lower average pow
audio
- 多功能数字调频收音机,采用TEA5767芯片,在实现收音机功能的基础上,附加以12864显示当前频率、万年历、温度,并可通过24c02存台,频率、时间都可以调整。-Multifunction digital FM radio, using TEA5767 chip, based on the realization of radio, additional to 12864 shows the current frequency, calendar, temperature, and throu
Te
- 实现宽带信号放大,由AD603级联组成增益放大器,实现增益 -20~60dB 范围内可按5dB步进调节或连续可调,且在0~9MHz通频带内增益起伏在1dB以下 互补三极管射级跟随高功率输出在50 负载上最大输出电压有效值Vo≥10V,波形无明显失真 功放输出信号经有效值检波后,通过10位A/D转换芯片TLC1549,将模拟电压的有效值转换成数字信号,并送微控制器实现增益预置与显示。-Broadband signal is amplified by the AD603 gain am
CXA1019
- 本调频收音机主要由FM/AM收音机芯片CXA1019、PLL且频率合成器BU2614和单片机AT98C51组成。收音机以单片机AT98C51为控制核心, 实现全频搜索、指定频率范围搜索和手动搜索电台 本收音机还使用了数字电位器(X9511)控制音量。采用液晶显示器显示载频和时钟等信息, 大幅度降低了系统的功耗。整机实现3V 电源工作, 采用E2PROM(AT24C04)存储电台, 还增加了立体声解码功能。-Mainly by the FM radio FM/AM radio IC CXA1019
Baseband-optical-based-on-Gigabit
- 提出一种适用于数字微波接力系统的基 带光纤拉远的接口方案 采用高性能千兆以太网物理层芯片 88E1111 和 1.25G 光收发器 SSFF3151 完成基带接口 基带信号可以通过数字光纤传输技术传到远端 并恢复射频信号 介绍了 88E1111 的工作原理 性能 接口等 并给出硬件电路设计的原理 以及各部分的具体实现方法和原理图 -Compared with the traditional RF and IF pulls distant technology the baseband o
Wideband_App_note
- Reconfigurable Wideband Digital Receiver System Architecture for W-CDMA The objective of the re-configurable wideband digital receiver system for W-CDMA described in this application note is to provide a solution for a single slot VME-based softw
6led-Frequency
- 频率计。6位数码管显示,普通89c51控制芯片制作的频率计(计数器),可以通过学习,掌握频率计、计数器的工作原理,也可以在业余无线电制作精度要求不高的场合使用-Frequency meter. 6-bit digital control, general 89c51 control chip produced by the frequency meter (counter), you can learn and master frequency meter, the counter works,
Electronic-Clock-System
- (1)、编制I2C通信程序,读取PCF8563T日历芯片的时间参数; (2)、时间显示功能:用8位数码管显示时、分、秒。 (3)、能够通过键盘修改时间、整点报时(模仿电台报时的方式——六声),并且使所设计的电子时钟系统具有容错性能。 (4)、使用蜂鸣器来实现报时功能操作 -(1), the preparation of I2C communication program, read PCF8563T calendar time parameters of the chip (2
TEA5767
- 基于TWI(IIC)总线控制的TEA5767数字调频收音机实验程序-Based TWI (IIC) bus control digital FM radio TEA5767 experimental procedure
MP3_Radio_Chips_RDA5807SP
- RDA5807芯片是目前市场上封装最小的 FM收音模块,它具备驱动能力强,可直接驱动耳机及放大器,覆盖频率从65M-108M 的各国调频波段,并且采用了I2C 总线控制模式,支持强大的LOW-IF数字音频结构和强大的数字信号处理技术(DSP),实现自动频率控制和自动增益控制等技术。该芯片在MP3领域当中使用非常广泛,可与:瑞芯微,Ali,鼎智,炬力,君正,山景,中颖等方案配合使用。 -RDA5807 chip is the smallest packages on the market FM
complete
- 用Verilog编写的数字钟与汽车尾灯模块。其中数字钟具有时间显示的基本功能,按键校时校分,闹钟模块(包含校时校分),仿电台报时(四低一高),整点报时,12-24显示切换等强大功能。-With a digital clock in Verilog modules and automotive taillights. Digital clock which displays the basic functions of a time, school hours when school keys,
dmr_spect
- DMR移动通信协议英文原版 对了解专用通信的同学很有帮助。-Digital Mobile Radio System
adjustBW
- Bandwidth (signal processing) or analog bandwidth, frequency bandwidth or radio bandwidth: a measure of the width of a range of frequencies, measured in hertz Bandwidth (computing) or digital bandwidth: a rate of data transfer, bit rate or through
FM
- 基于FM模块的数字调谐收音机设计 设计用单片机控制并显示调谐频率的简易数字调谐收音机,实际控制电路及软件的设计与调试-FM digital tuning module based radio design and display design with the SCM easy tuning digital tuning radio frequency, the actual control circuit and software design and debugging
WAVDE852
- 本机是全新一代数码随身听设备.本机除了具有 MP3 / WMA 播放,数码录音,FM 收音四大功能外, 增加了对 OLED 彩屏的支持和影音动画的播放,同时还增加了 JPEG 浏览,E-book 文本阅读等功能.本机 完美的音质,极高的可靠性和精巧的外观相得益彰,堪称大师级的作品,衷心的希望她能给您带来数码时代 的超凡享受-This machine is a new generation digital Walkman devices in this machine in addition to
feedforward-MSK-demodulator
- A fully digital feedforward MSK demodulator with joint frequency offset and symbol timing estimation for burst mode mobile radio