<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>A measurement method and system based on conventional radars has been proposed to address the problem of radar cross-section (RCS) measurement of ship targets in open seas. Calibration errors for RCS measurement on ground plane range (GPR) are analysed, and the error elimination method and accurate RCS calculation formula are given. An RCS measurement system is designed by improving conventional radars. These systems measure two Luneburg lens reflectors of different sizes on the lake. The average RCS of the big Luneburg lens reflector is obtained, and the error is calculated to be 2.73% compared with its actual value, which verifies the rationality of the proposed measurement method and system. The system measures the RCS of a ship in the open sea and obtains its circumferential RCS distribution. The effect of the error in the ship's position calculation on the RCS measurement results is analysed, and the uncertainty range of the error is obtained.</p>
</abstract>

A measurement method and system based on conventional radars has been proposed to address the problem of radar cross-section (RCS) measurement of ship targets in open seas. Calibration errors for RCS measurement on ground plane range (GPR) are analysed, and the error elimination method and accurate RCS calculation formula are given. An RCS measurement system is designed by improving conventional radars. These systems measure two Luneburg lens reflectors of different sizes on the lake. The average RCS of the big Luneburg lens reflector is obtained, and the error is calculated to be 2.73% compared with its actual value, which verifies the rationality of the proposed measurement method and system. The system measures the RCS of a ship in the open sea and obtains its circumferential RCS distribution. The effect of the error in the ship's position calculation on the RCS measurement results is analysed, and the uncertainty range of the error is obtained.

Research on RCS measurement of ship targets based on conventional radars

Applied Mathematics and Nonlinear Sciences

This work is licensed under the Creative Commons Attribution 4.0 International License.

{"article-title":"Research on RCS measurement of ship targets based on conventional radars"}

A measurement method and system based on conventional radars has been proposed to address the problem of radar cross-section (RCS) measurement of ship targets...

No.	Target	Model	RCS/m²
1	The small Luneburg lens reflector	190-I	5.6
2	The big Luneburg lens reflector	300-I	41

Number of beams	RCS/dBsm	Error (%)
1	57.04	9.13
2	57.44	0.35
3	57.46	–
4	57.42	1.00
5	57.48	0.36

Position of big Luneburg lens reflector		Echo intensity/dB	RCS/m²	error (%)
Distance/m	Height/m	Echo intensity/dB	RCS/m²	error (%)
4500	0.6	85.19	42.12	2.73
5000	0.6	83.26	42.06	2.58
5000	1	90.81	41.77	1.89
5000	2	96.64	42.43	3.48

Research on RCS measurement of ship targets based on conventional radars

Pubblicato online: 23 dic 2022

Pagine: 1105 - 1116

Ricevuto: 21 lug 2022

Accettato: 19 nov 2022

DOI: https://doi.org/10.2478/amns.2022.1.00030

Parole chiave
RCS, radar, ship target, calibration error, measurement

© 2022 Huatao Tang et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Fig. 5

Fig. 6

Fig. 7

Fig. 8

Fig. 9

Fig. 10

The parameters of the test targets.

The RCS error of Ship B.

The intensity and RCS of the big Luneburg lens reflector at different positions.

Research on RCS measurement of ship targets based on conventional radars

Pubblicato online: 23 dic 2022

Pagine: 1105 - 1116

Ricevuto: 21 lug 2022

Accettato: 19 nov 2022

DOI: https://doi.org/10.2478/amns.2022.1.00030

Parole chiaveRCS, radar, ship target, calibration error, measurement

© 2022 Huatao Tang et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Fig. 5

Fig. 6

Fig. 7

Fig. 8

Fig. 9

Fig. 10

The parameters of the test targets.

The RCS error of Ship B.

The intensity and RCS of the big Luneburg lens reflector at different positions.

Parole chiave
RCS, radar, ship target, calibration error, measurement