数字调制

age

很不错的一篇介绍各种调制的文档，对通讯系统的理解很有帮助。
【文件名】:081117@52RD_digital modulation.pdf
【格　式】:pdf
【大　小】:676K
【简　介】:
【目　录】:
1. Why Digital Modulation?
1.1 Trading off simplicity and bandwidth
1.2 Industry trends
2. Using I/Q Modulation (Amplitude and Phase Control)
to Convey Information
2.1 Transmitting information
2.2 Signal characteristics that can be modified
2.3 Polar display—magnitude and phase represented
together
2.4 Signal changes or modifications in polar form
2.5 I/Q formats
2.6 I and Q in a radio transmitter
2.7 I and Q in a radio receiver
2.8 Why use I and Q?
3. Digital Modulation Types and Relative Efficiencies
3.1 Applications
3.1.1 Bit rate and symbol rate
3.1.2 Spectrum (bandwidth) requirements
3.1.3 Symbol clock
3.2 Phase Shift Keying (PSK)
3.3 Frequency Shift Keying
3.4 Minimum Shift Keying (MSK)
3.5 Quadrature Amplitude Modulation (QAM)
3.6 Theoretical bandwidth efficiency limits
3.7 Spectral efficiency examples in practical radios
3.8 I/Q offset modulation
3.9 Differential modulation
3.10 Constant amplitude modulation

CHENCJB7541

这也要钱呀

gmh125120

好贵啊！！

john-deng

o????????????

john-deng

对我来说好

niming0904

贵贵贵[em03]