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Proportional navigation (also known as PN or Pro-Nav) is a guidance law (analogous to proportional control) used in some form or another by most homing air target missiles. [1] It is based on the fact that two vehicles are on a collision course when their direct line-of-sight does not change direction as the range closes. PN dictates that the ...
Proportional navigation (also known as "PN" or "Pro-Nav") is a guidance principle (analogous to proportional control) used in some form or another by most homing air target missiles. [5] It is based on the fact that two objects are on a collision course when the direction of their direct line-of-sight does not change. PN dictates that the ...
Pursuit guidance, or a pursuit course, is a form of guidance widely used in older guided missiles.. In pursuit guidance, the missile is steered so that the velocity vector of the missile always points at the target, i.e. it has always the direction of the line of sight.
Dead reckoning navigation tools in coastal navigation. In marine navigation a "dead" reckoning plot generally does not take into account the effect of currents or wind. Aboard ship a dead reckoning plot is considered important in evaluating position information and planning the movement of the vessel. [8]
The guidance system then compares the angle of the camera to the angle of the missile body and sends commands to the aerodynamic controls to bring it back onto a collision course. To address the need to track moving targets, a proportional navigation system is normally used, which naturally produces the required lead. [2]
The navigational algorithms are the quintessence of the executable software on portable calculators or smartphones as an aid to the art of navigation, this attempt article describe both algorithms and software for smartphones implementing different calculation procedures for navigation. The calculation power obtained by the languages—Basic, C ...
Pseudo-range multilateration, often simply multilateration (MLAT) when in context, is a technique for determining the position of an unknown point, such as a vehicle, based on measurement of biased times of flight (TOFs) of energy waves traveling between the vehicle and multiple stations at known locations.
Satellite navigation solution for the receiver's position (geopositioning) involves an algorithm.In essence, a GNSS receiver measures the transmitting time of GNSS signals emitted from four or more GNSS satellites (giving the pseudorange) and these measurements are used to obtain its position (i.e., spatial coordinates) and reception time.