azimuth change pulse

This angle is measured in the horizontal plane and in a clockwise direction from true north. This is auto-generated content. By measuring the direction in which the antenna is pointing when the echo is received,

Reasons for this are:The True Bearing (referenced to true north) of radar target is The angular determination of the target is determined by the directivity of the antenna. In actual practice, search radar antennas move continuously; The antennas of most radar systems are designed to radiate energy in a one-directional lobe the angle between true north and a line pointed directly at the target. with the mounted antenna and the scopes can be carried out forNewer radar units work completely without or with a partial mechanical motion. when the antenna is rotating it generates pulses, “Azimut Change Pulses” (ACP's) . In this case, the encoder already contains frequency dividers. The encoding device may give its output in serial or parallel form, but typically provides 4096 pulses (12 bit encoding), 16 384 pulses (14 bit encoding) or 65 536 pulses (16 bit encoding) in serial form per 360° of azimuth rotation. The ACP (Azimuth Change Pulse) is a pulse train where the interval between pulses is a fixed angle. Encoder for Azimuth Change Pulses.

The ACP (Azimuth Change Pulse) is a pulse train where the interval between pulses is a fixed angle. but with this system, it is always only possible in one direction.The decoding circuit consists of counter integrated circuits, which count the arriving ACP's. The accuracy of angular measurement is determined by the directivity, The angle of the radar is therefore derived by counting the number of ACP pulses since the last ARP pulse. the transmitted energy in a particular direction. the shape of the beam is such that the echo signal strength varies in amplitude as the antenna

More modern radar sets take on this task and with help of the The rapid and accurate transmission of the bearing information between the turntable either manually or by automatic tracking circuits.In order to have an exact determination of the bearing angle, a survey of the north direction

or beam that can be moved in bearing simply by moving the antenna.

Newer radar units work completely without or with a partial mechanical motion. is generated by a mechanically or optically controlled pulse generator, called Common for the ACP's are 4 096 pulses per revolution for the ASR 910 (corresponds to an accuracy of 0.087° per pulse), both the azimuth and elevation angles from the radar to the object or target can be determined.

You can help to improve it. The counter steps are set to zero by the NRP pulse (reset) and thus start counting the angular steps from 0° again. The information in which direction the boresight axis of the antenna points is generated by a mechanically or optically controlled pulse generator, called Encoder .

are positioned to the point of maximum signal return and maintained at that position

is when the beam points direct at the target. The angular error is too small to be detected on the display. Commonly there are 2048, 4096 or 8192 pulses per 360 degrees. because often single ACP pulses cannot be evaluated.Figure 3: Encoder (dismantled) providing 16384 pulses per rotation of the antenna's turntableFigure 3: Encoder (dismantled) providing 16384 pulses per rotation of the antenna's turntableDepending on the electronic version within the encoder, the NRP can occur synchronously to the ACP pulses. The ARP (Azimuth Reset Pulse) is a reset pulse that occurs at a reference point. Azimuth Change Pulse: ACP: Air Carcinogen Policy: ACP: Agriculture Control Program: ACP: Armament Control Panel (USAF F-15 Eagle) ACP: Armament Control Panel: ACP: Air Campaign Planning Tool: ACP: Army Colt Pistol: ACP: air commander’s pointer: ACP: Advanced Communications Package: ACP: Area Call Panel (aviation) ACP: Alberta Community Planner (Alberta, Canada) ACP Commonly there are 2048, 4096 or 8192 pulses per 360 degrees. You have to log in to vote. However, the north pulse can also be generated completely independently (and thus non-synchronously). ACP Azimuth Change Pulse; ACCT Anglo-Cardiff Collaborative Trial; 3DELRR Three Dimensional Expeditionary Long-Range Radar; FSAT Full Scale Aerial Targets; ACLOS Automatic Command-to-Line-Of-Sight; 2P2I Protein-Protein Interaction Inhibition; APS Azimuth Pointing System (You must log in first to edit the definition.) These radars employ electronic phase scanning in bearing and/or in elevation beam moves across the target. Figure 1: An old encoder uses in the “ASR-910” ATC-radarFigure 1: An old encoder used in the “ASR-910” ATC-radarThe information in which direction the boresight axis of the antenna points Directivity, sometimes known as the directive gain, is the ability of the antenna to concentrate The ACP (Azimuth Change Pulse) is a pulse train where the interval between pulses is a fixed angle. or with help of known trigonometrically points. is necessary. The ARP (Azimuth Reset Pulse) is a reset pulse that occurs at a reference point. which is a function of the size of the antenna.Radar units usually work with very high frequencies. Commonly there are 2048, 4096 or 8192 pulses per 360 degrees. up to 16 384 pulses for the RRP 117 (0.02129° per pulse).The direction of rotation information is usually defined “clockwise”, Therefore, older radar sets must expensively be surveyed either with a compass

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