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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. High frequency data - Wikipedia

    en.wikipedia.org/wiki/High_Frequency_Data

    High frequency data are primarily used in financial research and stock market analysis. Whenever a trade, quote, or electronic order is processed, the relating data are collected and entered in a time-series format. As such, high frequency data are often referred to as transaction data. [4]

  4. Market profile - Wikipedia

    en.wikipedia.org/wiki/Market_profile

    Perception of Value Fuels Market Activity; Market Profile Data and the Distribution Process; Market Profile Tools to Support Trading Decisions; Liquidity Data Bank Volume Analysis; Volume is said to identify signs of continuation or change, to infer the directional facilitation of trade, but "volume data, by itself, is meaningless". The reason ...

  5. Volume analysis - Wikipedia

    en.wikipedia.org/wiki/Volume_Analysis

    Therefore, a market for a security in which there are many buyers and sellers would feature a large volume and thus high liquidity. [5] [6] Due to volume's relevance with respect to liquidity, it is used by some traders to form exit strategies, due to the inherent risks of trading an asset with low liquidity. [3]

  6. High-frequency trading - Wikipedia

    en.wikipedia.org/wiki/High-frequency_trading

    High-frequency trading strategies may use properties derived from market data feeds to identify orders that are posted at sub-optimal prices. Such orders may offer a profit to their counterparties that high-frequency traders can try to obtain. Examples of these features include the age of an order [54] or the sizes of displayed orders. [55]

  7. Market data - Wikipedia

    en.wikipedia.org/wiki/Market_data

    Market data requirements depend on the need for customization, latency sensitivity, and market depth. Customization: How much operational control a firm has over its market data infrastructure. Latency sensitivity: The measure of how important high-speed market data is to a trading strategy. Market depth: the volume of quotes in a market data ...

  8. 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.

  9. Market research - Wikipedia

    en.wikipedia.org/wiki/Market_research

    Market research is a way that producers and the marketplace study the consumer and gather information about the consumers' needs. There are two major types of market research: primary research, which is sub-divided into quantitative and qualitative research, and secondary research. Factors that can be investigated through market research include: