Pulse amplitude modulation

... hybrid modulation technique called differential amplitude pulse- position modulation ( DAPPM) is proposed. DAPPM is a combination of pulse- amplitude modulation (PAM) and DPPM. The performance is ... D rms by D rms = a 12  13 11 . (4) 3. DIFFERENTIAL AMPLITUDE PULSE- POSITION MODULATION DAPPM is a combination of PAM and DPPM. Therefore the symbol length and pulse amplitude...

Ngày tải lên: 23/06/2014, 00:20

Ngày tải lên: 02/03/2013, 16:57

... chỉ bằng một phần ba tổng công suất phát đi. D 1uF 1k + 10V D 1uF 1k + 10V ĐIỀU BIÊN (AM: Amplitude modulation) I. Phổ của tín hiệu điều biên: Điều biên là quá trình làm cho biên độ tải tin biến

Ngày tải lên: 29/09/2013, 14:20

... System The wave forms are as shown below at different stages EXPERIMENT # 8 PULSE CODE MODULATION 1/27/2010 Group: The distortion is shown below figure ... reconstruct the signal. The effect of the LPF to signal reconstruction is important since it changes the amplitude of the frequency domain signal. PURPOSE The objectives of this la...

Ngày tải lên: 27/10/2013, 22:15

... Equa- tion (21) reconstructed the basic FBAM waveform using a hybrid amplitude and phase modulation technique. By ignoring the phase modulation component φ(n)in(21), one can look at the effectofAMseparately(seeFigure ... have shown that modulation of IIR filter coef- ficients (such as the coefficient-modulated allpass) has a phase-distortion effect on the input signal [8–10]. In addition, t...

Ngày tải lên: 21/06/2014, 07:20

... as Pulse Position Amplitude Modulation (PPAM) [6], Biorthogonal Pulse Position Modulation (BPPM) [7], OOK-PSM [8], PPM-PSM [9], and hybrid Shape -Amplitude Modulation [10, 11]. Regarding pulse amplitudes, ... applicable modulation techniques like Pulse Amplitude Modulation (PAM), PPM, Pulse Shape Modulation (PSM), on-off-keying (OOK), and biphase modulation (BPM)....

Ngày tải lên: 21/06/2014, 08:20

... P b -amplitude  log 2 M for MDUSTC, (26) P b =  L log 2 M  P b-phase + P b -amplitude  1+L log 2 M for MDOSTC, (27) where P b-phase and P b -amplitude are the BER’s of phase detection and amplitude ... the amplitude of differential unitary space-time code matrix to transmit, other log 2 M- 1bits {b im , m = 2, ,log 2 M} perform conventional differ- ential unitary space-time modulat...

Ngày tải lên: 22/06/2014, 23:20

... overlapping signals will cause amplitude beating (amplitude modulation resulting from in- terference between signals) in the mixture signals. The time frame with maximal amplitude in the mixture signals ... algo- rithms also commonly use correlated amplitude modulation as a grouping mechanism [11–13]. A harmonic amplitude envelope is an estimate of the am- plitude modulation tr...

Ngày tải lên: 22/06/2014, 23:20

... [1]. Various kinds of modulation schemes such as pulse- position modulation (PPM), orthogonal PPM (OPPM), pulse- amplitude modula- tion (PAM), on-off keying (OOK), and biphase modulation (BPM) have ... one another. When a pulse overlaps with itself, it is called interpulse interference (IPI) or self-interference and when pulse interferes with other pulses, it is called multipulse...

Ngày tải lên: 21/06/2014, 23:20

Ngày tải lên: 26/04/2013, 08:36