Research on Mutual Coupling Correction of Array Output Signal by Bp Network
نویسندگان
چکیده
The method of mutual coupling correction of array output signal is studied in the paper. According to array signal processing’s feature, array error model is analyzed and array mutual coupling is studied. The method that smart antennas’ channel calibration by BP network in wireless communication is proposed, which improves the accuracy of algorithms , such as the DOA estimation algorithm, Beam Forming algorithm etc. 8-unit uniform linear array and 8-unit uniform circular array are simulated by computer, and the results are compared with spatial spectrum lines of before-after correction. The proposed method is effective, for computer simulation experimental results are in line with the theoretical ones.
منابع مشابه
Evaluation and Compensation of Mutual Coupling and Other Non-idealities in Small Antenna Arrays
Smart antenna technology is a challenging area in the development of wireless communications. Using smart antennas the quality of a radio link can be improved by many ways. Smart antennas are active antenna arrays or groups with changeable complex-valued weights at inputs and outputs. Good electrical matching of the array and the similarity and ideality of element patterns is usually expected. ...
متن کاملNull Steering GPS Array in the Presence of Mutual Coupling
A null steering GPS antenna array is designed in this paper. In the proposed method, the exact full wave antenna radiation properties with the effect of mutual couplings and nearby scatterers are considered to calculate the array steering vector, precisely. Although the proposed method is not constrained by the array geometry and the antenna element specifications, a five patch antenna elements...
متن کاملبررسی اثر تزویج متقابل بر مشخصات تشعشعی یک آرایه آنتن مسطح محدود شامل پچ های مستطیلی
In this paper a novel method for computing the radiation pattern and also the input impedance of a planar rectangular micro-strip antenna array with consideration of mutual coupling and mutual impedance is presented. Each two triangles with a common edge make an Edge element or RWG. Any such edge element is considered as an infinitesimal dipole. The electrical currents over each dipole can be c...
متن کاملInvestigations into Capacity of MIMO Ad Hoc Network Including Effects of Antenna Mutual Coupling
This paper reports on investigations into capacity of ad hoc network whose nodes are equipped with multiple element antennas (MEAs). The investigation of this multi-user Multiple Input Multiple Output (MIMO) system takes into account mutual coupling (MC) in addition to spatial correlation that is present in array antennas. A closed-form expression for an upper bound of mutual information (capac...
متن کاملArray response interpolation and DOA estimation with array response decomposition
High-resolution direction-of-arrival (DOA) estimation requires an accurate array response model, which is usually achieved by measuring the response for given directions of the sources and employing interpolation. This paper considers the array response interpolation and DOA estimation by coherently combing parametric modeling and interpolation techniques. The proposed method is to decompose th...
متن کامل