Frequency Modulation If cjc is proportional to the instantaneous value of es then the variation in carrier frequency is given by Awc = kfes = kfB(t) cos o;st ... Also, pulses are of the same amplitude and width in pulse-code modulation (PCM) but the sampled signal is given by a coded arrangement of pulses. ... The advantages and disadvantages of these forms of pulse modulation are given in Table 1 .
|Title||:||Instrumentation and Measurement for Environmental Sciences|
|Author||:||Bailey W. Mitchell|
|Publisher||:||St. Joseph, Mich. : American Society of Agricultural Engineers - 1983|