Analysis on Suppression of Echo Signal
of Target Body and Translation
in Micro-Doppler Signal Processing
Tang Bo
(&) and Sun Qiang
College of Weaponry Engineering, Naval University of Engineering,
Wuhan, Hubei, China
39023784@qq.com
Abstract. In order to suppress the echo signal of target body and translation in
Micro-Doppler signal processing, the influence is analyzed based on the feature
of echo signal. The method of quadrature reception and translation compensation is proposed to suppress the interference of target body echo signal and
translation. Theoretical analysis and simulation show that this method can
effectively suppress the interference caused by the echo signal of target body
and translation.
Keywords: Micro-Doppler Á Echo of target body Á Translation Á Object
detection Á Feature recognition
1 Introduction
With the extensive research and application of Micro-Doppler technology in radar field,
it provides a new way and method for object detection and recognition [1]. By analyzing the echo signal of the target structural parts and extracting the Micro-Doppler
feature, the physical and moving characteristics of the target structural parts can be
obtained, and the object detection, feature recognition and classification can be carried
out [2].
However, the echo of the target structure part is always obtained along with the
echo of the target body, and at the same time, it is accompanied by the translation
information. These are all interference for the Micro-Doppler feature extraction of the
echo signal [3]. Therefore, suppressing the target body echo and translation must be
considered in the Micro-Doppler feature extraction [4].
In this paper, suppression of target body echo and translation are analyzed mainly
with the rotation of propellers in water.
2 Echo Signal Analysis
Assume that the acoustic detection equipment emits a single-frequency continuous
wave with a frequency of f c [5], i.e.
© Springer Nature Singapore Pte Ltd. 2020
Q. Liang et al. (Eds.): Artificial Intelligence in China, LNEE 572, pp. 205–211, 2020.
https://doi.org/10.1007/978-981-15-0187-6_23
of Target Body and Translation
in Micro-Doppler Signal Processing
Tang Bo
(&) and Sun Qiang
College of Weaponry Engineering, Naval University of Engineering,
Wuhan, Hubei, China
39023784@qq.com
Abstract. In order to suppress the echo signal of target body and translation in
Micro-Doppler signal processing, the influence is analyzed based on the feature
of echo signal. The method of quadrature reception and translation compensation is proposed to suppress the interference of target body echo signal and
translation. Theoretical analysis and simulation show that this method can
effectively suppress the interference caused by the echo signal of target body
and translation.
Keywords: Micro-Doppler Á Echo of target body Á Translation Á Object
detection Á Feature recognition
1 Introduction
With the extensive research and application of Micro-Doppler technology in radar field,
it provides a new way and method for object detection and recognition [1]. By analyzing the echo signal of the target structural parts and extracting the Micro-Doppler
feature, the physical and moving characteristics of the target structural parts can be
obtained, and the object detection, feature recognition and classification can be carried
out [2].
However, the echo of the target structure part is always obtained along with the
echo of the target body, and at the same time, it is accompanied by the translation
information. These are all interference for the Micro-Doppler feature extraction of the
echo signal [3]. Therefore, suppressing the target body echo and translation must be
considered in the Micro-Doppler feature extraction [4].
In this paper, suppression of target body echo and translation are analyzed mainly
with the rotation of propellers in water.
2 Echo Signal Analysis
Assume that the acoustic detection equipment emits a single-frequency continuous
wave with a frequency of f c [5], i.e.
© Springer Nature Singapore Pte Ltd. 2020
Q. Liang et al. (Eds.): Artificial Intelligence in China, LNEE 572, pp. 205–211, 2020.
https://doi.org/10.1007/978-981-15-0187-6_23