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  2. Pulse-repetition frequency - Wikipedia

    en.wikipedia.org/wiki/Pulse-repetition_frequency

    High PRF is limited to systems that require close-in performance, like proximity fuses and law enforcement radar. For example, if 30 samples are taken during the quiescent phase between transmit pulses using a 30 kHz PRF, then true range can be determined to a maximum of 150 km using 1 microsecond samples (30 x C / 30,000 km/s).

  3. Ambiguity resolution - Wikipedia

    en.wikipedia.org/wiki/Ambiguity_resolution

    The received signals from multiple PRF are compared using the range ambiguity resolution process. Each range sample is converted from time domain I/Q samples into frequency domain. Older systems use individual filters for frequency filtering.

  4. Head and shoulders (chart pattern) - Wikipedia

    en.wikipedia.org/wiki/Head_and_shoulders_(chart...

    The formation is upside down and the volume pattern is different from a head and shoulder top. Prices move up from first low with increase volume up to a level to complete the left shoulder formation and then fall down to a new low. A recovery move follows that is marked by somewhat more volume than seen before to complete the head formation.

  5. These are the 6 most important stock market charts technical ...

    www.aol.com/6-most-important-stock-market...

    The higher high above 3.25 ('18 highs) also validates the multi-decade reversal. ... "The most important chart we're watching heading into 2025 is the performance of high-momentum stocks vs. low ...

  6. Radar signal characteristics - Wikipedia

    en.wikipedia.org/wiki/Radar_signal_characteristics

    Radar designers try to use the highest PRF possible commensurate with the other factors that constrain it, as described below. There are two other facets related to PRF that the designer must weigh very carefully; the beamwidth characteristics of the antenna, and the required periodicity with which the radar must sweep the field of view.

  7. Candlestick chart - Wikipedia

    en.wikipedia.org/wiki/Candlestick_chart

    The Low and High caps are usually not present but may be added to ease reading. An hourly candlestick shown with order book depth on a currency exchange. A candlestick chart (also called Japanese candlestick chart or K-line ) is a style of financial chart used to describe price movements of a security , derivative , or currency .

  8. 2024 has been a nerve-wracking year for plane travel. How ...

    www.aol.com/2024-nerve-wracking-plane-travel...

    Anxious airline flyers may well remember 2024 as the year their worst fears about the safety of air travel felt confirmed, as a series of unprecedented, and in some cases fatal, airplane incidents ...

  9. Volume analysis - Wikipedia

    en.wikipedia.org/wiki/Volume_Analysis

    The PVI is recalculated when the trading volume increases from the previous period, and the NVI is recalculated when the trading volume decrease from the previous period. [8] These two metrics, when put together, show how volume is affecting the price of a security. A change in PVI indicates that prices are driven by high volumes.