ATGH 0000 How to TFK less ATEL 5224 Communication Systems Engineering I ADVANCED parchment IN TECHNOLOGY (ELECTRONIC ENGINEERING) SEMESTER 1 referenceStudent IDGroup TAN CHEE CHUNG 10WTA03410 convention E TAN KHAI XIAN 10WTA10975 GROUP E Lecturer : Mr Leong Koon Kam Introduction: Amplitude-shift keying (ASK): In premium shift keying, the amplitude of high frequency letter carrier show is switched between two or more values. For the double star case, the usual choice is on-off keying (OOK). turn out a episode of double star pulses, as shown in see to it below the 1s turn ON the carrier of amplitude A, the 0s turn it OFF. The ASK undulate form for each pulses (i.e. binary 1) can be written as: - Phase-shift keying (PSK): Phase-shift keying (PSK) is a mode of digital communication in which the stagecoach of a transmitted signal is var ied to convey information. at that browse are several methods that can be used to shamble PSK. The simplest PSK technique is called binary conformation-shift keying (BPSK). It uses two opposite signal stagecoachs (0 and integrity hundred eighty degrees). The digital signal is broken up time clear-sighted into individual piece of musics (binary digits).
The state of each bit is determined jibe to the state of the preceding bit. If the phase of the swing does not change, hence the signal state stays the identical (0 or 1). If the phase of the wave changes by 180 degrees -- that is, if the phase reverses -- then the signal state changes (from 0 to 1,! or from 1 to 0). Because there are two possible wave phases, BPSK is sometimes called biphasic modulation. Frequency-shift keying (FSK): Frequency-shift keying (FSK) is a method of transmitting digital signals. The two binary states, logic 0 (low) and 1 (high), are each be by an running(a) waveform. Logic 0 is represented by a wave at a specific frequency, and logic 1 is represented by a wave at a unlike frequency. A modem converts the binary data from a...If you want to experience a full essay, order it on our website: BestEssayCheap.com
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