Tao, Y. (2020) An Airborne Passive Positioning Method Based on Angle and Frequency Difference Measurement. Proceedings of the 2020 4th International Conference on Electronic Information Technology and Computer Engineering (EITCE 2020), Xiamen, 6-8 November 2020, 296-301.
https://doi.org/10.1145/3443467.3443771

has been cited by the following article:

• TITLE: A Method to Obtain the Moving Speed of Uncooperative Target Based on Only Two Measurements

  AUTHORS: Tao Yu

  KEYWORDS: Moving Speed, Non-Cooperative Target, Doppler Frequency Shift, Frequency Difference Equation, Azimuth, Steady-State Signal, Passive Location

  JOURNAL NAME: Advances in Aerospace Science and Technology, Vol.9 No.1, March 8, 2024

  ABSTRACT: The existing research results show that a fixed single station must conduct three consecutive frequency shift measurements and obtain the target’s moving speed by constructing two frequency difference equations. This article proposes a new method that requires only two consecutive measurements. While using the azimuth measurement to obtain the angular difference between two radial distances, it also conducts two consecutive Doppler frequency shift measurements at the same target azimuth. On the basis of this measurement, a frequency difference equation is first constructed and solved jointly with the Doppler frequency shift equation. By eliminating the velocity variable and using the measured angular difference to obtain the target’s lead angle, the target’s velocity can be solved by using the Doppler frequency shift equation again. The new method avoids the condition that the target must move equidistantly, which not only provides an achievable method for engineering applications but also lays a good foundation for further exploring the use of steady-state signals to achieve passive positioning.