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IEEE/ICACT20250181 Slide.04        [Big Slide]	Oral Presentation
	One common approach to address this is through TDOA-based positioning." This method calculates the position of the drone by using the time difference between the received signals and their arrival at different locations. However, the existing TDOA estimation methods rely on signal cross-correlation, which requires high correlation of signal waveform, and noise interference will lead to a large time delay estimation error, which will affect the positioning accuracy. The key to improve passive TDOA positioning accuracy is to reduce the noise of the received signal and reduce the influence of propagation noise on TDOA estimation

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