Proportional navigation - Wikipedia
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.
Then, the well-known and often-used proportional navigation guidance concept is developed. The mechanization of proportional navigation in guided missiles depends on several factors, including the types of inertial and target sensors available on board the missile.
Fundamentals of proportional navigation - IEEE Xplore
Proportional navigation has proved to be a useful guidance technique in several surface-to-air and air-to-air missile systems for interception of airborne targets. In this article, which is tutorial in nature, the basic theory of proportional navigation is presented and clarified.
Classical guidance laws, with proportional navigation (PN) being the most prominent example, had proven to be effective homing guidance strategies up through the 1960s and early 1970s. By the mid-1970s, however, the predicted capability of future airborne threats (highly maneuverable aircraft, supersonic cruise missiles, tacti-
Fundamentals of Proportional Navigation and Its Application …
Apr 30, 2008 · Proportional navigation is an interception guidance technique in which interceptor maneuvers are commanded which are proportional to the measured rate of rotation of the line of sight between an interceptor and its target.
Proportional navigation is based on the rate of change of the missile to target line-of -sight (LOS) . The missile commanded acceleration is proportional to the rate of change of the LOS. The ratio of the missile turning rate to the LOS rate of change is called the proportional navigation constant (N) . V N= 2 N' V m (2 1)
Proportional navigation solves the homing problem by letting the turn rate of the pursuer be pro-portional to the turn rate of the line-of-sight, i.e., the line from pursuer to target. The evasion …
What is the theoretical justification for "proportional navigation …
Oct 11, 2023 · Therefore, the proportional navigation rule can be stated as: $$\vec{a} = -N \vec{V_c}\times \vec{\dot\theta}$$ where $N$ is a contant and $\vec{\dot\theta}$ is the angular velocity vector of the line of sight.
Proportional-Navigation-Based All-Aspect Approach Against ...
Dec 4, 2024 · To this end, this paper presents a proportional-navigation-based multiphase guidance strategy against a nonmaneuvering target, moving at a lower speed than the pursuer, with any desired terminal angle in 2-D, by shaping the trajectory on an angular phase plane. First, a generalized version of the two-phase guidance scheme is presented for ...
Generalization of Adler's Three-Dimensional Proportional Navigation …
Dec 5, 2024 · The generalization of Adler's proportional navigation comprises two equations, a linear one and a nonlinear relation that possesses the turning rates of the LOS, the navigation gain, the lead angle, the range, and a velocity correction that brings the instantaneous collision-course velocity vector on the locus of the missile velocity. ...