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Samsung Galaxy J7 is a mid range Android smartphone produced by Samsung Electronics in 2015. [ 1][ 2] In Latin America, Galaxy J7 (SM-J700M) was being sold alongside the Galaxy S5 Neo (SM-G903M), which shares same Exynos 7580 Octa SoC. [citation needed] The J7+ was announced in 2017, [ 3] followed by the J7 Pro and J7 Max in 2018. [ 4]
Doppler effect. The emitted signal toward the car is reflected back with a variation of frequency that depends on the speed away/toward the radar (160 km/h). This is only a component of the real speed (170 km/h). The Doppler effect (or Doppler shift), named after Austrian physicist Christian Doppler who proposed it in 1842, is the difference ...
Radar jamming and deception. Radar jamming and deception is a form of electronic countermeasures (ECMs) that intentionally sends out radio frequency signals to interfere with the operation of radar by saturating its receiver with noise or false information. Concepts that blanket the radar with signals so its display cannot be read are normally ...
A variable intake nosecone replaced the three-stage fixed unit on J-7, and featured a thicker intake wall. A CL-2 ranging radar with 5 km of range replaced the earlier CL radar on J-7. Production ended in 1981 after a total of 147 were delivered, including upgraded versions such as J-7A and J-7IG, but excluding export versions.
Pulse-Doppler signal processing. Pulse-Doppler signal processing is a radar and CEUS performance enhancement strategy that allows small high-speed objects to be detected in close proximity to large slow moving objects. Detection improvements on the order of 1,000,000:1 are common. Small fast moving objects can be identified close to terrain ...
USB 2.0 (Micro-B port, USB charging) USB OTG. 3.50 mm (0.138 in) headphone jack. NFC (only in select models) The Samsung Galaxy J7 (2016) is an Android -based mid-range smartphone produced by Samsung Electronics in 2016 and is either based on the Qualcomm Snapdragon 615 or Exynos 7870 chipset. [ 1][ 2]
Continuous-wave radar. Continuous-wave radar ( CW radar) is a type of radar system where a known stable frequency continuous wave radio energy is transmitted and then received from any reflecting objects. [ 1] Individual objects can be detected using the Doppler effect, which causes the received signal to have a different frequency from the ...
A pulse-Doppler radar is a radar system that determines the range to a target using pulse-timing techniques, and uses the Doppler effect of the returned signal to determine the target object's velocity. It combines the features of pulse radars and continuous-wave radars, which were formerly separate due to the complexity of the electronics .