spread spectrum signalsdigital communicationsmodelSpread spectrum signals is a class of signals that were designed primarily for use in digital communication systems to overcome either intentional or unintentional interference. We begin by illustrating the basic elements of a spread spectrum digital ...
Spread spectrum systems have been developed for more than four decades, mostly for military use. They started emerging in commercial applications a few years ago, mainly in mobile communications. Spread spectrum is a method of communication in which the signal occupies a much larger bandwidth than ...
Message Protection by Spread Spectrum Modulation in a Packet Voice Radio Link In spread spectrum communication systems the bandwidth of the transmitted signal is far in excess of the information bandwidth itself. The spectrum spreading is controlled by a pseudonoise (PN) code... M Kowatsch,BO Eic...
spread spectrum (redirected fromSpread spectrum communication) Encyclopedia n. A set of radio transmission techniques that vary the timing and frequency of the signal, thereby increasing the transmission's bandwidth, reducing noise and interference while making the signal harder to detect or intercept. ...
Spread Spectrum was developed as a way to secure military communications by spreading the signal over a large frequency band. Learn more at ni.com.
Spread Spectrum Communications and CDMA说明书 Spread Spectrum Communications and CDMA Dr. Kwang-Cheng Chen, Professor Graduate Institute of Communications Engineering College of Electrical Engineering National Taiwan University FAX:02-23683824E-Mail:***.ntu.edu.tw NTU EE Mobile Communications KC Chen, NT...
Method and system for spread-spectrum digital communication by golay complementary sequence modulation本发明公开了一种通过Golay互补序列调制进行扩频数字通信的方法,发射器和接收器. The present invention discloses a spread spectrum digital communication by Golay complementary sequence modulation methods, the ...
DS spread spectrum signal at the base station, the signals from the other simultaneous users of the channel appear as additive interference. Let us determine the number of simultaneous signals that can be accommodated in a CDMA system. We assume that ...
A spread spectrum CDMA communications system for communicating data and/or digitized voice between a plurality of users to a plurality of PCN units. The spread spectrum communications system is locate
- 《Electronics & Communications in Japan Part》 被引量: 1发表: 2010年 FPGA Spread Spectrum Communication Method Based on M Sequence As an important digital communication technology, spread spectrum communication has the characteristics of strong anti-interference and high spectrum utili... J Xu,Z ...