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QAM调制的基本原理
QAM调制实际上是幅度调制和相位调制的组合。相位 + 幅度状态定义了一个数字或数
字的组合。QAM的优点是具有更大的符号率，从而可...
QAM调制的基本原理
QAM调制实际上是幅度调制和相位调制的组合。相位 + 幅度状态定义了一个数字或数
字的组合。QAM的优点是具有更大的符号率，从而可获得更高的系统效率。通常由符号率
确定占用带宽。因此每个符号的比特（基本信息单位）越多，效率就越高。-QAM modulation of the basic principles are in fact QAM modulation amplitude modulation and phase modulation of the portfolio. Phase+ margin status defines a combination of numbers or figures. The advantage of QAM symbols are greater rate, thus the system efficiency will be higher. Symbol rate is usually determined by the occupied bandwidth. Thus each bit symbols (basic units of information) the more the higher the efficiency.
- 2022-12-16 17:00:03下载
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- 2022-02-20 03:51:08下载
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这是个很不错的程序，是由中科院的老师亲自编写的，有关RMI和数据库的编程...
这是个很不错的程序，是由中科院的老师亲自编写的，有关RMI和数据库的编程-this is a very good process, the Chinese Academy of Sciences by the teachers personally prepared, the RMI and database programming
- 2022-01-24 09:32:02下载
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自己写的记录AD值的一个小软件可以运行成功，用VB写的，对这方面有需要的人可以做个参考...
自己写的记录AD值的一个小软件可以运行成功，用VB写的，对这方面有需要的人可以做个参考-himself wrote the record value of the AD a small software can run successfully, written in VB, these are people in need can be a reference
- 2023-07-17 22:45:02下载
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MIMO-OFDM无线系统开发与仿真
这是一篇很大的程序，有多种功能，可以很好地描述MIMO-OFDM系统，也可以改不同的参数，达到仿真比较的结果，这是一篇不错的程序，大家可以参考它，进行多种改进
- 2022-05-15 14:47:29下载
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LAPB协议的实现源码，是X.25的基础。也可以称作为…
LAPB协议的实现源码，是x.25的基础。也可以作为LAPM纠错协议的参考-LAPB protocol implemented source is the basis of X.25. LAPM also can be used as a reference FEC agreement
- 2022-05-29 08:41:47下载
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在这个仿真模型，16
In this simulink model , 16-QAM modulation and demodulation is simulated .A square root raised cosine pulse shaped signal is modulated and given as input to the demodulator.The received signal
is demodulated and given to the detector where it is matched filtered and down-sampled .The effects of symbol timing offset
can be seen by varying the phase of down-sampling
operation.The signal transmitted is recovered
at the detector output.-In this simulink model , 16-QAM modulation and demodulation is simulated .A square root raised cosine pulse shaped signal is modulated and given as input to the demodulator.The received signal
is demodulated and given to the detector where it is matched filtered and down-sampled .The effects of symbol timing offset
can be seen by varying the phase of down-sampling
operation.The signal transmitted is recovered
at the detector output.
- 2022-07-24 17:48:41下载
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微软亚洲研究院论文：自组DS
微软亚洲研究院论文：自组DS-CDMA网络中的扩散码分配-Microsoft Asia Research Institute thesis : Since the group DS-CDMA network distribution of the proliferation of Codes
- 2022-07-21 07:35:30下载
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基于wince的smartphone Home Screen下用Dial Paser输入特定字符串进入特定程序...
基于wince的smartphone Home Screen下用Dial Paser输入特定字符串进入特定程序-based on the smartphone Jack Home Screen using Dial Paser specific input strings into specific procedures
- 2022-01-25 22:29:31下载
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CSTN 用IC 7669
CSTN 用IC 7669-write-flow-CSTN using IC 7669-write-flow
- 2023-06-24 21:40:03下载
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