spread spectrum communications การใช้

• He also co-authored the " Spread Spectrum Communications Handbook " ( ISBN 0071382151 ).
• His notable work includes the design of a number of spread spectrum communications systems, and the Massey-Omura cryptosystem ( with James Massey ).
• In Multi-carrier code division multiple access ( MC-CDMA ), also known as OFDM-CDMA, OFDM is combined with CDMA spread spectrum communication for coding separation of the users.
• "' Robert Arno Scholtz "'( born c . 1936 ) is a distinguished professor of Electrical engineering at University of Southern California, known for ultra-wideband and spread spectrum communications.
• Signals that are below the noise floor can be detected by using different techniques of spread spectrum communications, where signal of a particular information bandwidth is deliberately spread in the frequency domain resulting in a signal with a wider occupied bandwidth.
• It also says this : " She and composer George Antheil invented an early technique for spread spectrum communications and frequency hopping, necessary for wireless communication from the pre-computer age to the present day "-which is overstating the contribution even if it were true.