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2. Pulse-repetition frequency - Wikipedia

   en.wikipedia.org/wiki/Pulse-repetition_frequency

   The pulse-repetition frequency (PRF) is the number of pulses of a repeating signal in a specific time unit. The term is used within a number of technical disciplines, notably radar . In radar, a radio signal of a particular carrier frequency is turned on and off; the term "frequency" refers to the carrier, while the PRF refers to the number of ...

3. Market profile - Wikipedia

   en.wikipedia.org/wiki/Market_profile

   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 given is that "it is essential to know what market participants are doing".

4. Chart pattern - Wikipedia

   en.wikipedia.org/wiki/Chart_pattern

   In stock and commodity markets trading, chart pattern studies play a large role during technical analysis. When data is plotted there is usually a pattern which naturally occurs and repeats over a period. Chart patterns are used as either reversal or continuation signals.

5. High Resolution Wide Swath SAR imaging - Wikipedia

   en.wikipedia.org/wiki/High_Resolution_Wide_Swath...

   The swath width constrains the pulse repetition interval (PRI) or equivalently pulse repetition frequency (PRF), which equals to 1/PRI in the following way. If the SAR sensor flying with speed v {\displaystyle v} , and there are two targets P and Q on the ground, the azimuth angle is calculated as Δ ϕ = ϕ P − ϕ Q {\displaystyle \Delta ...

6. High-frequency trading - Wikipedia

   en.wikipedia.org/wiki/High-frequency_trading

   In the early 2000s, high-frequency trading still accounted for fewer than 10% of equity orders, but this proportion was soon to begin rapid growth. According to data from the NYSE, trading volume grew by about 164% between 2005 and 2009 for which high-frequency trading might be accounted. [23]

7. Market data - Wikipedia

   en.wikipedia.org/wiki/Market_data

   The market data distribution platforms are designed to transport over the network large amounts of data from financial markets. They are intended to respond to the fast changes on the financial markets, compressing or representing data using specially designed protocols to increase throughput and/or reduce latency .