Title :
An idea to hybrid amplitude, frequency and phase modulation of digital signal
Author :
Renshi, Yu ; Wenfeng, Sun ; Yanzhao, Li
Author_Institution :
Sch. of Sci. & Inf., Qingdao Agric. Univ., Qingdao, China
Abstract :
According to wave function x(t) = A cos(wt + φ), varying A, w, φ in the same symbol slot can make modulation more efficient and maybe more economic. QAFPM described in this paper is a new technique, which shows this idea. At that time, realization of QAFPM and comments on its advantage and disadvantage are also discussed in the last.
Keywords :
digital signals; frequency modulation; phase modulation; quadrature amplitude modulation; wave functions; QAFPM; digital signal amplitude modulation; digital signal frequency modulation; digital signal phase modulation; wave function; Frequency division multiplexing; Frequency shift keying; Oscillators; Phase modulation; Quadrature amplitude modulation; Amplitude; Demodulation; Frequency; Modulation; Phase; QAM;
Conference_Titel :
Consumer Electronics, Communications and Networks (CECNet), 2012 2nd International Conference on
Conference_Location :
Yichang
Print_ISBN :
978-1-4577-1414-6
DOI :
10.1109/CECNet.2012.6201476
