![]() The figure below shows the block diagram for generating a PPM signal: Thus, here we have assumed that a PWM signal is already generated at the output of the comparator and now we have to generate a PPM signal. Block diagram for generation of PPM signalĪs we have already discussed that a PPM signal can be easily generated by making use of a PWM signal. Thus, the trailing edge of the PWM signal acts as the beginning point of the pulses of PPM signal. Now, the question arises how the position of the pulses show variation?Īs we have already discussed that a PPM signal is generated in reference to a PWM signal. Thus, transmission power does not show variation. However, this is not the case with PPM as here the width of the pulses remains constant and only their position varies. The basic idea about the generation of a PPM waveform is that here, as the amplitude of the message signal increases, the pulse shifts according to the reference.Īs we have already discussed in PWM that due to the variable width of the pulses, the transmission power also varies accordingly. The information is transmitted with the varying position of the pulses in pulse position modulation. PWM is the first type of PTM and is discussed in the previous content. ![]() To understand the generation of the PPM signal, it is necessary to understand Pulse Width Modulation (PWM or PDM).
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |