In recent years, radartechnology has gained significant interest for its application in detecting vital signs. It has the potential to play a crucial role in identifying obstructive sleep apnea (OSA), a serious condi...
详细信息
In this paper, based on substrate integrated waveguide (SIW), a wideband monopulse slot array antenna is proposed in V band for radar applications. First, a single-layer monopulse comparator with two input ports and f...
详细信息
ISBN:
(纸本)9798350389968
In this paper, based on substrate integrated waveguide (SIW), a wideband monopulse slot array antenna is proposed in V band for radar applications. First, a single-layer monopulse comparator with two input ports and four output ports is designed as the beamforming network. The comparator is formed by two-way power dividers, 3dB couplers, and self-compensating 90 degrees delays. Then, by loading dual-layer center-coupled 4 x 8 slot arrays at the output ports of the proposed comparator, a wideband monopulse antenna is designed. When port 1 is fed, the difference pattern is achieved with the impedance bandwidth of 10.92% (59.21-66.05 GHz). And the simulated impedance bandwidth of the sum pattern when port 2 is fed is 12.20% (58.64-66.26 GHz). High isolation of better than 19.67 dB is realized between two input ports in the operation band. At 60 GHz, the sum pattern achieves the gain of 20.04 dBi and the 3 dB beamwidth of 28.10 degrees. Besides, the difference pattern achieves the null depth of -31.18 dB with the gain of 16.30 dBi at 60 GHz.
MIMO radar networks are composed of multiple separated MIMO sensors and each radarsensor can be viewed as a subarray. Although the MIMO radar networks can obtain a larger virtual aperture, excessive node or subarray ...
详细信息
A metasurface featuring a diamond-structured phase distribution to mitigate radar cross-section. This metasurface incorporates a coded phase distribution in a diamond pattern, effectively reflecting incident waves acr...
详细信息
ISBN:
(纸本)9798350389968
A metasurface featuring a diamond-structured phase distribution to mitigate radar cross-section. This metasurface incorporates a coded phase distribution in a diamond pattern, effectively reflecting incident waves across six primary directions. The coded phase involves two unit cells. Simulation results indicate a significant RCS reduction, reaching up to 16.71 dB under normal x-polarization incident waves at 13 GHz and up to 18.05 dB at 20 GHz. The introduction of the diamond-structured phase distribution proves effective in lowering RCS within the frequency range of 9 GHz to 20 GHz. The variance in RCS reduction at different frequencies is attributed to distinct resonance characteristics.
作者：
Wang, Wen-Qin
University of Electronic Science and Technology of China Huzhou313001 China
Target two-dimensional (range and angle dimensions) localization is meaningful in sensor application areas, but most of typical techniques provide angle-only localization. Frequency diverse array (FDA) sensor offers p...
详细信息
This paper is about a method for extracting the target point of a signal received from a radarsensor through spatial voxelization in an indoor environment with many metal objects such as partitions, PCs, and monitors...
详细信息
The stability and reliability of vehicle sensor data such as high-precision integrated inertial navigation system (INS), millimeter wave radar (MMW), laser radar (LIDAR) are very important for the functional realizati...
详细信息
The combination of laser radar and IMU inertial navigation technology can establish a real-time point cloud map of the vehicle’s surrounding environment. The combination of navigation technology can accurately restor...
详细信息
The Ingara Real-Time Demonstrator (RTD) being developed at the Defence Science and technology Group is seeking to upgrade the current Ingara sensor and processing capability to support the maturation of exploitation a...
详细信息
This work addresses the design considerations, simulations, and fundamental framework of a novel Relative Navigation (RN) radarsensor operating at millimeter-wave bands, aiming at operating in ocean environments. A &...
详细信息
ISBN:
(纸本)9781510650930;9781510650923
This work addresses the design considerations, simulations, and fundamental framework of a novel Relative Navigation (RN) radarsensor operating at millimeter-wave bands, aiming at operating in ocean environments. A "multi-loop" system structure is suggested, which is believed to be the method to achieve the accuracy and reliability of a non-traditional tracking radarsensor. Simulation studies and data collection verification for preliminary hardware and software elements are presented.
暂无评论