A PSP Antenna Array Receiver for Joint Angle , Multipath and Data Estimation
نویسندگان
چکیده
| A time-recursive algorithm for the joint estimation of angles of arrival (AOA), multipath channel coe cients, and digital data is developed. This algorithm, which is applicable to TDMA cellular and PCS systems, is based on the technique of Per-Survivor Processing (PSP). The PSP-based adaptive array processing algorithm uses per-survivor estimation of AOAs and channel coe cients embedded into a vector measurement Maximum Likelihood Sequence Detector. It is demonstrated through computer simulation that this algorithm can accurately and blindly estimate the AOA and amplitude of paths which occur at a separation of a fraction of the symbol interval and which outnumber the array elements.
منابع مشابه
Joint Estimation of Angle, Doppler and Polarization Parameters for Narrowband MIMO Multipath Channels Using Polarization Sensitive Antenna Arrays
A novel subspace based joint angle of arrival (AOA), angles of departure (AOD), Doppler shifts and polarization states parameter estimation scheme for polarized two-dimensional (2D) double directional MIMO multipath channels is proposed in this paper. A narrowband system with non-polarized uniform linear array at the transmitter and cross-polarized antenna array at the receiver is considered. T...
متن کاملOptimization Capabilities of LMS and SMI Algorithm for Smart Antenna Systems (RESEARCH NOTE)
In the present paper convergence characteristics of Sample matrix Inversion (SMI) and Least Mean Square (LMS) adaptive beam-forming algorithms (ABFA) are compared for a Smart Antenna System (SAS) in a multipath environment. SAS are employed at base stations for radiating narrow beams at the desired mobile users. The ABFA are incorporated in the digital signal processors for adjusting the weight...
متن کاملAngle-of-Arrival Estimation in Multipath Environments Using Sliding Antenna Arrays
This paper presents a method for improving Angle-of-Arrival estimation accuracy in multipath environments using a sliding antenna array consisting of only two antennas. The proposed method is then experimentally validated by means of a dual channel Software-Defined Radio receiver and a wireless microphone.
متن کاملDirection of Arrival Estimation of GNSS Signals Based on Synthetic Antenna Array
Jammer and interference are sources of errors in positions estimated by GNSS receivers. The interfering signals reduce signal-to-noise ratio and cause receiver failure to correctly detect satellite signals. Because of the robustness of beamforming techniques to jamming and multipath mitigation by placing nulls in direction of interference signals, an antenna array with a set of multi-channel re...
متن کاملMitigation of GPS Multipath Using Polarization and Spatial Diversities
This paper presents a GPS multipath mitigation method using a dual circularly polarized antenna array and a multi-channel receiver. The method is based on the exploitation of both polarization and spatial diversity associated with a GPS signal and its multipath signals available at the receiver input. Conventional GPS antennas are right-hand circularly polarized (RHCP) to suppress multipath con...
متن کامل