What do you mean by pulse time modulation?
Definition of pulse time modulation : modulation of the time intervals between successive pulses of constant duration and amplitude in accordance with a signal specifically : a system of multiplex high-frequency transmission using this method of modulation.
What is PTM in communication?
In Pulse time modulation (PTM), amplitude of the carrier is kept constant and the Position or width of the carrier varies with the amplitude of the modulating signal at the time of sampling. Pulse width modulation and pulse position modulation are the types of Pulse Time Modulation.
What is the meaning of pulse position?
Definition of pulse position modulation : modulation of a radio wave or signal in which the intelligence is conveyed by varying the time relationship of the pulses of the wave.
What is Pam in digital communication?
Pulse-amplitude modulation (PAM), is a form of signal modulation where the message information is encoded in the amplitude of a series of signal pulses. It is an analog pulse modulation scheme in which the amplitudes of a train of carrier pulses are varied according to the sample value of the message signal.
What is pulse modulation used for?
Pulse modulation methods are used to transfer a narrowband analog signal, such as a phone call, over a pulse stream. Some schemes use a digital signal for transmission, making them essentially an analog-to-digital conversion.
What are the types of pulse width modulation?
The three conventional types of pulse width modulation are a) Trail Edge Modulation b) Lead Edge Modulation c) Pulse Center Two Edge Modulation.
What is meant by Delta Modulation?
A delta modulation (DM or Δ-modulation) is an analog-to-digital and digital-to-analog signal conversion technique used for transmission of voice information where quality is not of primary importance. The analog signal is approximated with a series of segments.
What is use of pulse position modulation?
Pulse position modulation is especially used in radio frequency communications like remote-controlled aircraft, cars, and other vehicles where communications are done to the receiver by a transmitter.
Where is pulse modulation used?
Why do we use pulse modulation?
What is digital pulse modulation?
Pulse-code modulation (PCM) is a method used to digitally represent sampled analog signals. It is the standard form of digital audio in computers, compact discs, digital telephony and other digital audio applications. Though PCM is a more general term, it is often used to describe data encoded as LPCM.