研究目的
Investigating the feasibility of aircraft positioning using the signal delay profile of ISDB-T, a type of digital terrestrial television broadcasting (DTTB) used in Japan, as a means to expand the coverage area of conventional radar systems.
研究成果
The experimental results demonstrate that ISDB-T signal delays can be effectively used for aircraft positioning, offering a higher update rate compared to conventional primary surveillance radar (PSR). The method shows promise for expanding radar coverage areas and improving aircraft surveillance systems.
研究不足
The positional accuracy of the estimated target positions was not taken into account in this study. Additionally, the method's effectiveness in environments with high levels of interference or in detecting multiple targets simultaneously requires further investigation.
1：Experimental Design and Method Selection:
The study utilizes passive bistatic radar (PBR) principles with ISDB-T signals for aircraft positioning. The method leverages the guard interval (GI) characteristics of ISDB-T for detecting delayed signals caused by aircraft.
2：Sample Selection and Data Sources:
The experiment was conducted near Tokyo International Airport using high-power signals from TOKYO SKYTREE, a main tower in Japan.
3：List of Experimental Equipment and Materials:
A COTS Yagi antenna with 30 elements and a signal analyzer 'Keysight Technology N9010A with software N6155A' were used.
4：Experimental Procedures and Operational Workflow:
The experiment involved receiving incident and scattered waves by aircraft using the Yagi antenna, detecting signals, and computing signal delays to estimate aircraft positions.
5：Data Analysis Methods:
The analysis involved comparing delay profiles with and without moving targets to detect aircraft and estimate their positions based on bistatic ranging.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
