Airship radar conformal thinned array antenna and its signal processing method

The invention discloses an airship radar conformal thinned array antenna and its signal processing method. The conformal thinned array antenna comprises a plurality of sparsely-distributed subarrays on a ship body. The subarrays adopt active phase control subarrays, and a rigid structure is adopted...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LI LIECHEN, TENG XIUMIN, LI DAOJING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES ANTENNAS, i.e. RADIO AERIALS BASIC ELECTRIC ELEMENTS DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ELECTRICITY LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING
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Beschreibung
Zusammenfassung:	The invention discloses an airship radar conformal thinned array antenna and its signal processing method. The conformal thinned array antenna comprises a plurality of sparsely-distributed subarrays on a ship body. The subarrays adopt active phase control subarrays, and a rigid structure is adopted to guarantee subarray face control precision. A receiving/transmitting assembly of the subarrays is a stereoscopic integrated tile structure with radiation array elements. Each subarray transmits and receives frequency division or code division orthogonal signals so as to realize a full-array transmit-receive function. Observation scope of the conformal thinned array antenna is determined by subarray antenna beamwidth. High spatial resolution is realized by full-array antenna. The airship radar with the conformal thinned array antenna is used for high-resolution ground imaging and moving object detection.