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A pulse per second (PPS or 1PPS) is an electrical signal that has a width of less than one second and a sharply rising or abruptly falling edge that accurately repeats once per second. PPS signals are output by radio beacons, frequency standards , other types of precision oscillators and some GPS receivers.
The serial DCD pin can be used to accurately detect a PPS signal, as described in RFC 2783: [1] One convenient means to provide a PPS signal to a computer system is to connect that signal to a modem-control pin on a serial-line interface to the computer. The Data Carrier Detect (DCD) pin is frequently used for this purpose.
Non-laser light detection is utilized extensively in automated machine control systems (e.g. electric eyes controlling a garage door, conveyor sorting gates, etc.), and those that use pulse-rate detection and ranging are at heart, the same type of system as a radar—without the bells and whistles of the human interface.
Operations Specialist (abbreviated as OS) is a United States Navy and United States Coast Guard occupational rating. It is a sea duty-intensive rating in the Navy while most of Coast Guard OS's are at ashore Command Centers.
The typical functions performed by a PPS officer are: To fulfil duties based on border responsibilities, in the areas of maintenance of public peace and order, crime prevention, investigation, and detection, collection of intelligence, VIP security, counter-terrorism, border policing, railway policing, tackling smuggling, drug trafficking, economic offences, corruption in public life, disaster ...
By June 23, 2015, the PPS was created by law under an amendment to the Parliament of Canada Act. The speaker of the Senate and the speaker of the House of Commons are responsible for the PPS. The new Parliamentary Protective Service began, starting with changes in weaponry, radio communication and surveillance equipment. [14]
Detection of targets is within a sector of approximately 120 degrees, although IFF and SSR targets are detected using a dedicated omnidirectional antenna, and hence may be seen over 360 degrees. Up to 200 targets can be automatically tracked simultaneously, with an output rate adjustable from 1 to 5 seconds.
2oo2D – Two out of two voting with additional diagnostic detection capabilities (instrumentation) 2oo3 – Two out of three voting (instrumentation) 2ooN detection – to reach specified alarm limit when N ≥ 3 (instrumentation) 2P – proved and probable reserves; 3C – three components seismic acquisition (x, y, and z)