(57)< Abstract > The data carrier tries to receive the carrier signal (CSM1, CSM2 and CSM3). For example as for that signal the modulation factor set which is locked (, 100%, 50% and 10%) it is modulated in one. The demodulator which has sensitivity in each modulation factor (15...
Fig. 4 shows another representation of the modulation of a carrier by a digital signal, using PSK. Sign in to download full-size image Fig. 4. Modulating the phase of a carrier. A more efficient usage is for each signal element to represent more than one bit, for example, two bits per...
The modulator uses in changing the radio-frequency carrier signal, causes the intelligence signal the oscillation amplitude, the frequency or the phase and the modulation baseband signal is related.Radio frequency recognition system channel transmission medium for electromagnetic field (inductive co ...
Wavelet Packet Modulation (WPM) is a new type of modulation for transmission of multicarrier signal on wireless channel that uses orthogonal wavelet bases other than sine functions. Though this modulation is over all similar to that of OFDM, it provides interesting additional features. In this ...
A pulse-width modulation circuit detects a signal level or amplitude of an audio signal by means of an absolute value detecting circuit. The detected level is applied to a control terminal of a voltage- controlled oscillator. The output of the voltage-controlled oscillator is used as a carrier...
www.nature.com/scientificreports OPEN Improved demodulated phase signal resolution for carrier signals with small modulation index by clipping and synchronous sampling for heterodyne interferometers M. Yu *, M. Schewe , G. Bauer & C. Rembe Digitization of phase-...
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EURASIP Journal on Advances in Signal Processing All Volumes & Issues Open Access Advances in Single Carrier Block Modulation with Frequency Domain ProcessingISSN: 1687-6180 (Online) In this topical collection (10 articles) Research Article Iterative Successive Interference Cancellation for Quasi-...
In this paper, we consider the achievable average power reduction of MSM signals by using optimized reserved carriers and coding methods. Based on Nehari's result we present a lower bound for maximum average power of the signal after adding the reserved carriers. It is shown that the mean ...
As we have observed above, the modulator in an OFDM system can be implemented by computing the IDFT. The demodulator that recovers the information symbols {Xk} from the received signal samples is implemented by computing the DFT. The detector is described below. When the number of subcarriers ...