Array patch type radio fuse

[0020] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] like figure 2 with image 3 As shown, an array-type radio trunk of the present invention includes an array patch receiving antenna 1, a patch emission antenna 2, a multi-channel transceiver circuit 3, and a signal processing circuit 4.

[0022] The plurality of separate patch antennas in the antenna 1 constitute an array to form a multi-channel array receiving antenna, and each receiving channel in the receiving circuit corresponds to a group element in the antenna in the antenna.

[0023] The transmitting antenna 2 also uses a patch antenna, an antenna may be in a single or array, the antenna polarization direction is the same as the receiving antenna, and the beam width can be customized as needed.

[0024] like Figure 4 As shown, the signal processing circuit built into a digital beamforming algorithm. Digital beamforming is directed to the array antenna, using the aperture of the array antenna, forming a received beam in a desired direction via a digital signal processing. Although the direction of the single antenna is whole, the signal of the plurality of receiving channels of the array, using the digital processing method, the incident signal in a certain direction, the compensation due to the propagation wave factor caused by the sensor in the spatial position The phase difference is achieved, thereby achieving the maximum energy receiving in this direction, completing the beam formation in this direction to receive a useful desired signal, which aggregate the direction gain received by the array in a designated direction, which is equivalent to formation A "beam". You can point to different directions by changing the weight, and the scanning of beam is achieved. Multiple beams can also be formed simultaneously by multi-channel parallel processing, and a suitable window function can also be selected to reduce the sub-valve level.

[0025] like Figure 5 As shown, the signal processing circuit built-in ratio phase measurement angle algorithm. The phase method angular angle utilizes the phase difference between the echo signals between the plurality of antennas. The signal reflected from the θ direction remote zone target, which can be approximately planar waves when reaching the receiving antenna. Since the two receiving antenna spacing is D, the received signal is existentant and the phase difference They meet between: Therefore, the phase calculation is used to compare the echo signal, and the phase difference is measured. You can determine the target direction θ, the calculation of the azimuth can be used

[0026] The above is only preferred embodiments of the invention, and is not intended to limit the invention, any modification, equivalent replacement, improvement, etc. according to the principle of the present invention, should be included within the scope of the invention.