![]() In this paper, a comparative exploration of BER performance of ASK, FSK and PSK for channel utilization is proposed and the investigation are carried out with SNR over AWGN channel as the reference factor. Cosine signal has been used as a carrier wave. In this paper, we have implemented ASK, FSK and PSK using MATLAB. It directly affects the probability of error performance of a system. SNR is well known measure of how the signal and noise power compare against each other. BER is a key parameter that used for assessing systems that transmit signal data from one location to another. AbuelmaAtti, New ASK/FSK/PSK/QAM wave generator using multiple-output operational transconductance amplifiers. Binary modulation methods use two level symbols and are facile to implement, provide good error substantiation. In this lecture we will understand the introduction to Digital modulation Techniques like ASK, FSK, PSK modulation, coherent detection and non coherent det. The selection of a digital modulation technique for a specific application depend not only the bandwidth efficiency and implementation complexity but also error rate occurred in a bit (BER) and signal to noise ratio. These modulation schemes can be characterized by their transmitted symbols which consist of a discrete set of values occurring at gradually spaced intervals. ![]() Therefore amplitude shift keying is analogous to Amplitude Modulation (analog modulation). ![]() Amplitude shift keying (ASK) In ASK, the amplitude of the carrier wave is changed (switched) according to the digital input signal (modulating signal). This paper mainly discusses about three basic digital modulation process ASK, FSK, PSK. So now lets discuss each digital modulation technique (ASK, FSK and PSK) in detail. ![]()
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