关于模拟调制解调的源代码，am,ssb,dsb,pm,fm
上传时间： 2014-01-22
上传用户：silenthink
MSP430单片机时钟晶振和各个部分主频控制的程序，使用到了AM时钟计时器控制的相关知识，开发环境IAR4.1
上传时间： 2013-12-30
上传用户：363186
基于matlab，针对调幅AM、调频FM和调相PM信号，分析在不同的噪声环境，包括高斯白噪声、色噪声、非高斯噪声及正弦干扰中，各种信号的二阶循环谱。可根据需要改变程序中信号或噪声环境，分析结果。
标签： matlab
上传时间： 2017-09-08
上传用户：13517191407
A few years ago I became interested in first person shooter games and in particular how the world levels are created and rendered in real time. At the same time I found myself in between jobs and so I embarked on an effort to learn about 3D rendering with the goal of creating my own 3D rendering engine. Since I am a developer and not an artist I didn’t have the skills to create my own models, levels, and textures. So I decided to attempt to write a rendering engine that would render existing game levels. I mainly used information and articles I found on the web about Quake 2, Half Life, WAD and BSP files. In particular I found the Michael Abrash articles that he wrote for Dr. Dobbs magazine while working at Id to be very illuminating.
标签： interested particular shooter became
上传时间： 2013-12-13
上传用户：hanli8870
单片机 ：AT89S52 或 STC89C52RC 典型传感器：AM2301 功能 ：串口发送温湿度数据 波特率 9600 晶振 ：12M (用户系统时钟如不是12M 请更改相关宏定义及注释的延时时间) 编译环境: Keil 4
上传时间： 2018-07-27
上传用户：gmc832002
·300M内部时钟频率 ·可进行频移键控（FSK），二元相移键控（BPSK），相移键控（PSK），脉冲调频（CHIRP），振幅调制（AM）操作 ·正交的双通道12位D/A转换器 ·超高速比较器，3皮秒有效抖动偏差 ·外部动态特性： 80 dB无杂散动态范围（SFDR）@ 100 MHz (±1 MHz) AOUT ·4倍到20倍可编程基准时钟乘法器 ·两个48位可编程频率寄存器 ·两个14位可编程相位补偿寄存器 ·12位振幅调制和可编程的通断整形键控功能 ·单引脚FSK和BPSK数据输入接口 ·PSK功能可由I/O接口实现 ·具有线性和非线性的脉冲调频（FM CHIRP）功能，带有引脚可控暂停功能 ·具有过渡FSK功能 ·在时钟发生器模式下，有小于25 ps RMS抖动偏差 ·可自动进行双向频率扫描 ·能够对信号进行sin(x)/x校正 ·简易的控制接口： 可配置为10MHZ串行接口，2线或3线SPI兼容接口或100MHZ 8位并行可编程接口 ·3.3V单电源供电 ·具有多路低功耗功能 ·单输入或差分输入时钟 ·小型80脚LQFP 封装
上传时间： 2019-08-06
上传用户：fuxy
The new digital radio system DAB (Digital Audio Broadcasting, nowadays often called Digital Radio) is a very innovative and universal multimedia broadcast system which will replace the existing AM and FM audio broadcast services in many parts of the world in the future. It was developed in the 1990s by the Eureka 147/DAB project. DAB is very well suited for mobile reception and provides very high robustness against multipath reception. It allows use of single frequency networks (SFNs) for high frequency efficiency.
标签： Broadcasting Principles Digital Audio
上传时间： 2020-05-27
上传用户：shancjb
Before I can present design concepts or tactical wireless communications and network challenges, I feel the need to mention the challenges of writing for a field where some information is not available for public domain and cannot be included in this book’s context. Another challenge is the use of military jargon and the extensive number of abbreviations (and abbreviations of abbreviations!) in the field. Engineering books are naturally dry, and I have attempted to make it light by presenting the concepts in layman’s terms before diving into the technical details. I am structuring this book in such a way as to make it useful for a specialized graduate course in tactical communications and networking, or as a reference book in the field.
标签： Communications Tactical Networks Wireless and
上传时间： 2020-06-01
上传用户：shancjb
This is a practical book, to be sure, but it is also a book about hope and posi- tive change. I am quite sincere. The delivery of electricity is deeply rooted in the principle of universal access; when clean, reliable energy is available it contributes to poverty alleviation, improved social conditions, and enhanced economic development. In the developed world, we know this to be true. The digital fabric of our lives is a testimony to the importance of energy security. Across the globe, we have seen the vital contributions that electrification has brought to the development of economies and an enhanced quality of life. Nonetheless, this supreme engineering achievement has languished, and we are deeply challenged.
标签： Strategies Analytics Data Big
上传时间： 2020-06-07
上传用户：shancjb
It was the publisher’s idea that I write RFID in the Supply Chain: A Guide to Selection and Implementation . Not only am I editor of Enterprise Inte- gration System , Second Edition Handbook and author of The Complete Book of Middleware , I also had some innovative business process and project management ideas on improving the effectiveness of integrating enterprise systems with information on product traceability, the scope of which has been widened by the RFID technology mandates.
标签： Selection Supply Chain Guide RFID the in to
上传时间： 2020-06-08
上传用户：shancjb
