dvb ca 移植接口代码及文档说明。有对ST、V、I、C卡的处理说明,并给出了怎样使一台机顶盒支持多种智能卡的伪代码!
上传时间: 2016-12-26
上传用户:jqy_china
现代雷达普遍采用相参信号处理,而如何获得高精度基带数字正交( I , Q) 信号是整个系统信号处理成败的关键,以前通常的做法是采用模拟相位检波器得到I、Q信号,其正交性能一般为:幅度平衡在2 % 左右, 相位正交误差在2°左右,即幅相误差引入的镜像功率在- 34dB 左右。这限制了信号处理器性能的提高, 为此, 近年来提出了对低中频直接采样恢复I、Q 信号的数字相位检波器。随着高位、高速A/ D 的研制成功和普遍应用,使得数字相位检波方法的实现成为可能。 对信号进行中频直接采样和数字正交处理后,产生的I 支路和Q 支路信号序列在时间上会错开一个采样间隔,需要进行定序处理,恢复成同步输出的I、Q 两路信号序列。
上传时间: 2016-12-27
上传用户:yxgi5
中频验波是对信号进行中频直接采样和数字正交处理后,产生的I 支路和Q 支路信号序列在时间上会错开一个采样间隔,需要进行定序处理,恢复成同步输出的I、Q 两路信号序列。现代雷达普遍采用相参信号处理,而如何获得高精度基带数字正交( I , Q) 信号是整个系统信号处理成败的关键,以前通常的做法是采用模拟相位检波器得到I、Q信号,其正交性能一般为:幅度平衡在2 % 左右, 相位正交误差在2°左右,即幅相误差引入的镜像功率在- 34dB 左右。这限制了信号处理器性能的提高, 为此, 近年来提出了对低中频直接采样恢复I、Q 信号的数字相位检波器。随着高位、高速A/ D 的研制成功和普遍应用,使得数字相位检波方法的实现成为可能。
上传时间: 2016-12-27
上传用户:kr770906
<I believe> song _verilog code for any device.
标签: believe verilog device code
上传时间: 2013-12-22
上传用户:wys0120
酒吧老板价格表vbkkljl个ipfgik皮带 东风康帕斯飞 帕斯克哦佛i 日减肥假话骗人 欧冠欧赔健康的飞机
上传时间: 2014-01-09
上传用户:WMC_geophy
Java is the first language to provide a cross-platform I/O library that is powerful enough to handle all these diverse tasks. Java is the first programming language with a modern, object-oriented approach to input and output. Java s I/O model is more powerful and more suited to real-world tasks than any other major language used today. Java I/O is the first and still the only book to fully expose the power and sophistication of this library.
标签: cross-platform language powerful provide
上传时间: 2014-01-07
上传用户:pompey
89C51 单片机 I/O 口模拟串行通信的实现方法
上传时间: 2016-12-28
上传用户:youke111
详细介绍了LPC2132的I/O实验中蜂鸣器实验的原程序以及引脚的设置等
上传时间: 2013-12-22
上传用户:z754970244
包含三个CC2430的I/O测试程序。程序基于IAR软件编写,用来控制片上LED的开关及闪烁。通过适当修改同样可以用于CC1110的开发,估计对开发无线传感器网络的相关人士比较重要。
上传时间: 2014-08-30
上传用户:hasan2015
The AVRcam source files were built using the WinAVR distribution (version 3.3.1 of GCC). I haven t tested other versions of GCC, but they should compile without too much difficulty. * The source files for the AVRcam had the author name and copyright information added back into them after the judging of the project, since it states in the competition rules that the author s name can not be present during their inspection. * The included source files are the ones that were submitted for the entry into the Circuit Cellar contest. I have continued to develop the AVRcam, and have added several new features (such as ignoring objects that aren t larger than a minimum size, removing tracked objects that overlap with each, and some general optimizations). If you are interested in the latest source, email me at john@jrobot.net * For more info about the AVRcam, check out http://www.jrobot.net John Orlando August 20, 2004
标签: distribution version AVRcam source
上传时间: 2016-12-30
上传用户:GavinNeko