An estimation algorithm of scattered powers caused by a moving aircraft

Honda, Junichi; Otsuyama, Takuya

doi:10.1587/comex.2.490

Cited by 8 publications

(8 citation statements)

References 3 publications

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“…However, the imaging method requires much computation time due to the exact ray searching. Therefore, we have simplified the ray searching procedure in order to reduce computation time [8].…”

Section: Ray Tracing Methodsmentioning

confidence: 99%

“…This is because the RTM easily computes the electromagnetic field in a large area and also considers various parameters such as the target pose, velocity and so on. The RTM used in this paper was recently developed by authors [7], [8]. It enables us to rapidly compute scattered fields in comparison with the general one [8].…”

Section: Introductionmentioning

confidence: 99%

“…The RTM used in this paper was recently developed by authors [7], [8]. It enables us to rapidly compute scattered fields in comparison with the general one [8]. Next, we compute the detection rate of target at each receiver.…”

Section: Introductionmentioning

confidence: 99%

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Estimation of Target Detection Rate in Aircraft Surveillance System

Honda

Otsuyama

2014

2014 17th International Conference on Network-Based Information Systems

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This paper is concerned with an estimation of the target detection rate for aircraft surveillance system. Recently, the passive surveillance system has been expected to be used as a new aircraft surveillance system. In the passive surveillance system, since reflected/scattered powers from aircraft are generally much smaller than incident power from a source, it is difficult to detect only the desired signals. In order to increase the detection rate, we need to develop an enhanced receiver unit or to appropriately locate receivers. In this paper, we describe an estimation method of detection rate for moving target. First, we introduce a simple algorithm for analyzing scattered powers from an aircraft which is regarded as radar cross section. The algorithm is based on the ray tracing method (RTM), and it enables the rapid computation in super wide areas. Next, we show the detection rate of aircraft as one example. They can be computed by choosing the output power of transmitter or antenna gain as parameters. Finally, we discuss the advantages of the proposed method and its future application.

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Section: Ray Tracing Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Estimation of Target Detection Rate in Aircraft Surveillance System

Honda

Otsuyama

2014

2014 17th International Conference on Network-Based Information Systems

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“…The second step is to determine the relationship between source, receiver and each representative point. The ideas are based on the discrete ray tracing method proposed by authors [6], [7]. If the representative point is in LOS for both the source and the receiver, we define that all the edge points composing one face of an obstacle are in LOS.…”

Section: B Simplified Ray Searchingmentioning

confidence: 99%

“…The proposed algorithm is based on the Ray Tracing Method (RTM) which is able to compute electromagnetic waves in relatively large area in comparison with other numerical methods. There are two steps [6]: one is to construct obstacles by triangular and rectangular faces, and the other is to simplify ray searching between a source and a receiver. At first, we describe a principle of the proposed method.…”

Section: Introductionmentioning

confidence: 99%

Rapid Computation Algorithm for Radio Wave Propagation Characteristics on Airport Surface

Honda¹,

Otsuyama²

2014

2014 Eighth International Conference on Complex, Intelligent and Software Intensive Systems

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This paper is concerned with an analysis of propagation characteristics on an airport surface by using the ray tracing method (RTM). The RTM is generally applied to an analysis of behaviors of electromagnetic waves in urban/suburban areas for such terrestrial broadcasting and cellular phone, and there were only few reports in a civil aviation research field. However, in aircraft surveillance systems in the airport, performance decrement arises due to the multipath interference. Therefore, it is important to investigate propagation characteristics in the airport. In this paper, we firstly propose an algorithm for rapid field computation based on the RTM. In the algorithm, we generate obstacles by triangular or rectangular faces, and we simplify the ray searching procedure by using the representative points of each obstacles' face. That process enables us to compute electromagnetic fields as rapidly as possible. Next, we describe the computation method of electromagnetic field. Finally, we show ray distribution, delay profile and received powers as numerical examples. We discuss the computation time of the proposed method and the interferences of multipath which lead to the detection errors.

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