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  2. IATA delay codes - Wikipedia

    en.wikipedia.org/wiki/IATA_delay_codes

    In the AHM 780 specification, the two-character numeric-only codes are sent in the DL and EDL elements along with the time assigned to each code (e.g. DL31/62/0005/0015 showing reason 31 for 5 mins and reason 62 for 15 minutes), and the three-character alphanumeric codes are sent in the DLA element (e.g. DLA31C/62A// showing subreason C for ...

  3. Ambiguity function - Wikipedia

    en.wikipedia.org/wiki/Ambiguity_function

    A more concise way of representing the ambiguity function consists of examining the one-dimensional zero-delay and zero-Doppler "cuts"; that is, (,) and (,), respectively. The matched filter output as a function of time (the signal one would observe in a radar system) is a Doppler cut, with the constant frequency given by the target's Doppler ...

  4. Air traffic flow management - Wikipedia

    en.wikipedia.org/wiki/Air_traffic_flow_management

    The aim is to use capacity effectively, keeping the average delay as low as possible, while ensuring capacity is not exceeded. [ 4 ] For example, if two flights are scheduled to arrive at an airport at exactly the same time, and the airport can handle one aircraft every five minutes, the aircraft may be assigned delays to ensure that the second ...

  5. Talk:IATA delay codes - Wikipedia

    en.wikipedia.org/wiki/Talk:IATA_delay_codes

    This page was last edited on 29 January 2024, at 02:50 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.

  6. List of national coordinate reference systems - Wikipedia

    en.wikipedia.org/wiki/List_of_national...

    The list below is a collection of available official national projected Coordinate Reference Systems. Links to the relevant unique identification codes of the EPSG Geodetic Parameter Dataset, the most comprehensive collection Coordinate Reference Systems, are provided in the table.

  7. Very minimum shift keying - Wikipedia

    en.wikipedia.org/wiki/Very_minimum_shift_keying

    The special near zero group delay filters required are claimed by Walker to be non patentable due to prior publication. In 2002, "Walker said the company (Pegasus Data Systems) was delayed when one of its financial backers (AlphaCom) went out of business in late 2000.

  8. Group delay and phase delay - Wikipedia

    en.wikipedia.org/wiki/Group_delay_and_phase_delay

    The group delay and phase delay properties of a linear time-invariant (LTI) system are functions of frequency, giving the time from when a frequency component of a time varying physical quantity—for example a voltage signal—appears at the LTI system input, to the time when a copy of that same frequency component—perhaps of a different physical phenomenon—appears at the LTI system output.

  9. Modified AMI code - Wikipedia

    en.wikipedia.org/wiki/Modified_AMI_code

    This line code is called bipolar with three-zero substitution (B3ZS), and is very similar to HDB3. Each run of 3 consecutive zeros is replaced by " 00V " or " B0V ". The choice is made to ensure that consecutive violations are of differing polarity, i.e. separated by an odd number of normal B marks.