2016年6月1日水曜日

Digital data communication technology for SDR (Software Defined Radio) SDRデジタル通信の基礎情報

Digital data communication technology for SDR (Software Defined Radio)

Following tutorials are about SDR Digital data communication technology.
Unfortunately, I cannot always assure the validity of their theories but they might help you understand something useful.

(1) Basics of IQ Signals and IQ modulation & demodulation 
- A tutorial

https://www.youtube.com/watch?v=h_7d-m1ehoY

(Copyright bt W2AEW)


Basic explanation for BPSK and IQ modulation/demodulation. (4Bits binary data)


(2) QAM, QPSK Explanation (for 16Yers old students)

(Copyright by Mr. Robert Webber)

Mr. Webber expanded the principle to be 2^n binary communication method.




Description about QAM, BER and SNR

(Copyright by NutaqInnovation)


(4) A DEMEM LSI product for digital communication



(Copyright by CML microcircircuit)


(5) Quadrature Mixers, IQ Demodulation, and the Taylor Detector

(copyright by devttys0 )
An introduction to basic mixer theory and operation, focusing on quadrature mixers / demodulation, and describing the operation and design of a practical Taylor detector.

 Very good explanation for IQ modulator/demodulator using actual assembled circuits. Very easy to understand them.
https://www.youtube.com/watch?v=JuuKF1RFvBM

(6) Introduction to digital communication and OFDM digital TV
デジタル無線通信の基礎から デジタル無線通信の基礎から OFDM入門まで
(Copyright) 和田 知久さん


(7) Introduction to complex number and development of LSI for very fast digital communication
電気・電子システムと複素数 (複素数入門)
(Copyright) 松澤昭さん


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