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  2. Pulse-position modulation - Wikipedia

    en.wikipedia.org/wiki/Pulse-position_modulation

    Pulse-position modulation (PPM) is a form of signal modulation in which M message bits are encoded by transmitting a single pulse in one of possible required time shifts. [ 1 ] [ 2 ] This is repeated every T seconds, such that the transmitted bit rate is M / T {\displaystyle M/T} bits per second.

  3. Types of radio emissions - Wikipedia

    en.wikipedia.org/wiki/Types_of_radio_emissions

    Single-sideband modulation with full carrier (e.g. as used by CHU) J: Single-sideband with suppressed carrier (e.g. Shortwave utility and amateur stations) K: Pulse-amplitude modulation: L: Pulse-width modulation (e.g. as used by WWVB) M: Pulse-position modulation: N: Unmodulated carrier (steady, single-frequency signal) P: Sequence of pulses ...

  4. 555 timer IC - Wikipedia

    en.wikipedia.org/wiki/555_timer_IC

    The internal block diagram and schematic of the 555 timer are highlighted with the same color across all three drawings to clarify how the chip is implemented: [2] Voltage divider : Between the positive supply voltage V CC and the ground GND is a voltage divider consisting of three identical resistors (5 kΩ for bipolar timers, 100 kΩ or ...

  5. Stress wave communication - Wikipedia

    en.wikipedia.org/wiki/Stress_wave_communication

    Stress wave communication is a technique of sending and receiving messages using host structure itself as the transmission medium. Conventional modulation methods such as amplitude-shift keying (ASK), frequency-shift keying (FSK), phase-shift keying (PSK), quadrature amplitude modulation (QAM), pulse-position modulation (PPM) and orthogonal frequency-division multiplexing (OFDM) could be ...

  6. Line code - Wikipedia

    en.wikipedia.org/wiki/Line_code

    An example of coding a binary signal using rectangular pulse-amplitude modulation with polar non-return-to-zero code An example of bipolar encoding, or AMI. Encoding of 11011000100 in Manchester encoding An example of differential Manchester encoding An example of biphase mark code An example of MLT-3 encoding

  7. Block diagram - Wikipedia

    en.wikipedia.org/wiki/Block_diagram

    A block diagram is a diagram of a system in which the principal parts or functions are represented by blocks connected by lines that show the relationships of the blocks. [1] They are heavily used in engineering in hardware design , electronic design , software design , and process flow diagrams .

  8. File:Pulseaudio-diagram.svg - Wikipedia

    en.wikipedia.org/wiki/File:Pulseaudio-diagram.svg

    The original can be viewed here: Pulseaudio-diagram.png: . Modifications made by Tsaitgaist . This SVG file contains embedded text that can be translated into your language, using any capable SVG editor, text editor or the SVG Translate tool .

  9. Pulse (signal processing) - Wikipedia

    en.wikipedia.org/wiki/Pulse_(signal_processing)

    Examples of pulse shapes: (a) rectangular pulse, (b) cosine squared (raised cosine) pulse, (c) Dirac pulse, (d) sinc pulse, (e) Gaussian pulse. A pulse in signal processing is a rapid, transient change in the amplitude of a signal from a baseline value to a higher or lower value, followed by a rapid return to the baseline value. [1]