# Bistatic Radar Positioning of a Moving Target, Using Only Range and Range-Rate Measurements

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## Abstract

Of the many applications of bistatic (BS) radars, this paper addresses the possibility to replace a monostatic radar with its highly directive antenna, by a coherent BS radar using a single short baseline between the transmitter and the receiver, and no direction measurements. The method applies to a moving target and requires both <italic>range</italic> and <italic>range-rate</italic> BS measurements. Theory and field-test results demonstrate, on a two-dimensional scene, how several consecutive pairs of BS <italic>range</italic> <inline-formula><tex-math notation="LaTeX">$( r )$</tex-math></inline-formula> and <italic>range-rate</italic> <inline-formula><tex-math notation="LaTeX">$( {\dot{r}} )$</tex-math></inline-formula> measurements of a moving target can provide the target&#x0027;s position, velocity and heading (<italic>x, y, vx, vy</italic>). In a three-dimensional scene, with 5 estimated target parameters (<italic>x, y, h, vx, vy</italic>), a second receiver is needed, not in-line with the original baseline. The <inline-formula><tex-math notation="LaTeX">$( {r,\dot{r}} )$</tex-math></inline-formula> measurements distinguish the suggested concept from most other multistatic radars as well as the well-known multilateration positioning or interferometric angle-of-arrival estimation.

Original language English 1-10 10 IEEE Transactions on Aerospace and Electronic Systems https://doi.org/10.1109/TAES.2022.3202758 Accepted/In press - 2022