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首页> 外文期刊>Journal of information and computational science >Coupled Antenna Array of Direction Finding Based on Ormia Ochracea
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Coupled Antenna Array of Direction Finding Based on Ormia Ochracea

机译：基于Ormia Ochracea的耦合测向天线阵列

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Current direction finding technology focuses mainly on post-processing the received signals by the antenna array. In general, to make every antenna independent and no mutual coupling and to achieve high direction rinding accuracy, keep large space between antennas, which leads to that direction finding system is larger and with lower integration. The auditory system of parasitoid fly Ormia ochracea is very tiny, and it can determine the arrival direction of a sound wave of its host with an astonishing degree of precision due to its two coupled ears. In this paper, the coupled hearing mechanism of Ormia Ochracea was introduced into the conventional direction finding antenna array, the antenna spacing is small, and phase difference of the received signals is too tiny to achieve direction finding, and the tiny phase difference is amplified by the external coupled network of antenna array as hearing mechanism of Ormia Ochracea, and finally achieve direction finding accurately. The suitable coupled network was designed and appropriate parameters were set, and then the simulations were implemented with different frequencies and different angles of incident wave. The simulated results show that the direction finding antenna array based on external coupled network can amplify validly the phase difference of the received signals with small antenna spacing, which proves the coupled network effective. Compared with the traditional direction finding, the propose direction finding antenna array has the characteristics of miniaturization and integration.
机译：当前的测向技术主要集中在天线阵列对接收到的信号进行后处理。通常，为了使每个天线独立且不相互耦合，并实现较高的方向冲洗精度，请在天线之间保持较大的空间，这将导致测向系统更大且集成度较低。寄生性蝇Ormia ochracea的听觉系统非常小，由于其两只耳朵耦合，它可以以惊人的精确度确定其宿主声波的到达方向。本文将Ormia Ochracea的耦合听觉机制引入到传统的测向天线阵列中，天线间距小，接收信号的相位差太小，无法实现测向，并且将微小的相位差放大天线阵列的外部耦合网络作为Ormia Ochracea的听力机制，最终实现精确的测向。设计了合适的耦合网络并设置了合适的参数，然后以不同的频率和不同的入射波角度进行了仿真。仿真结果表明，基于外部耦合网络的测向天线阵列可以有效地放大天线间距较小的接收信号的相位差，证明了耦合网络的有效性。与传统的测向相比，本文提出的测向天线阵列具有小型化和集成化的特点。

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