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  2. Low-density parity-check code - Wikipedia

    en.wikipedia.org/wiki/Low-density_parity-check_code

    This LDPC code fragment represents a three-bit message encoded as six bits. Redundancy is used, here, to increase the chance of recovering from channel errors. This is a (6, 3) linear code, with n = 6 and k = 3. Again ignoring lines going out of the picture, the parity-check matrix representing this graph fragment is

  3. Error correction code - Wikipedia

    en.wikipedia.org/wiki/Error_correction_code

    The original information may or may not appear literally in the encoded output; codes that include the unmodified input in the output are systematic, while those that do not are non-systematic. A simplistic example of ECC is to transmit each data bit three times, which is known as a (3,1) repetition code. Through a noisy channel, a receiver ...

  4. Digital pattern generator - Wikipedia

    en.wikipedia.org/wiki/Digital_pattern_generator

    The maximum rate defines the minimum time interval between 2 successive patterns. For instance, a 50 MHz (50 MSample/s) digital pattern generator is able to output a new pattern every 20 nanoseconds. The supported voltage standards ultimately define the set of electronic devices a digital pattern generator can be used with.

  5. IEC 61000-4-5 - Wikipedia

    en.wikipedia.org/wiki/IEC_61000-4-5

    The "1.2/50 μs" generator is designed for insulation testing, and produces a high-voltage, low-current impulse into a high-impedance load. The output current of this generator is on the milliampere scale. [2] [5] The "8/20 μs" generator is designed for surge arrester testing, and produces a high-current surge into a low-impedance load. [2]

  6. Linear congruential generator - Wikipedia

    en.wikipedia.org/wiki/Linear_congruential_generator

    The second row is the same generator with a seed of 3, which produces a cycle of length 2. Using a = 4 and c = 1 (bottom row) gives a cycle length of 9 with any seed in [0, 8]. A linear congruential generator (LCG) is an algorithm that yields a sequence of pseudo-randomized numbers calculated with a discontinuous piecewise linear equation.

  7. Gauss notation - Wikipedia

    en.wikipedia.org/wiki/Gauss_notation

    Gauss notation (also known as a Gauss code or Gauss words [1]) is a notation for mathematical knots. [2] [3] It is created by enumerating and classifying the crossings of an embedding of the knot in a plane. [2] [4] [5] It is named after the German mathematician Carl Friedrich Gauss (1777–1855). Gauss code represents a knot with a sequence of ...

  8. Nonlinear system identification - Wikipedia

    en.wikipedia.org/wiki/Nonlinear_system...

    System identification is a method of identifying or measuring the mathematical model of a system from measurements of the system inputs and outputs. The applications of system identification include any system where the inputs and outputs can be measured and include industrial processes, control systems, economic data, biology and the life sciences, medicine, social systems and many more.

  9. Orders of magnitude (voltage) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(voltage)

    10 −3: 1–2 mV Potential created at ambient temperatures from K Type Thermocouple: Centi-10 −2 ~10–50 mV Ripple voltage in the output of a good DC power supply [9] 75 mV Nerve cell resting potential [10] Deci-10 −1: 320 mV Typical voltage reference level in consumer audio electronics (0.316 V rms) [11] ~500 mV