This paper presents interference suppression using a subband adaptive array (SBAA) for uplink space-time block coding (STBC) code division multiple access (CDMA) under a frequency selective fading (FSF) channel. The proposed scheme utilizes CDMA with STBC and a receive array antenna with SBAA processing at the receiver. The received signal is converted into the frequency domain before despreadi...

If the desired signal is uncorrelated with incoming interference signals, a linearly constrained adaptive array successfully estimates the desired signal by reducing the interference signals [1]. If the desired signal is correlated partially or totally (i.e., coherent) with the interference signals, the desired signal is partially or totally cancelled in the array output depending on the extent...

Adaptive filters are novel kind of filters used in Digital Signal Processing with adjustable weights. The weight adjustment in adaptive filters is done using some special kind of algorithms called as adaptive algorithms. Adaptive filters have a number of applications in various fields like signal processing, communication systems biomedical etc. One of the novel applications of Adaptive filters...

This paper proposes an adaptive pin-array fixture. The key idea of this research is to use the shape-memorable mechanism pin array fix multiple different shaped parts with a common configuration. clamping area consists matrix passively slid-able pins that conform themselves contour target object. vertical motion enables fixture encase profile shape memorable realized by combination rubber bush ...

The traditional approach to the design of adaptive beamformers assumes that the desired signal components are not present in training data, and the robustness of beamformer is known to depend essentially on the availability of signal-free training data. However, in many important applications such as mobile communications, passive location, microphone array speech processing, medical imaging, a...

In a frequency division duplex system, a transmitter adaptive antenna array can potentially improve the performance of a wireless downlink. But because the uplink and downlink channels have different wavelengths, and therefore different responses, direct downlink adaptation based on channel estimates of the uplink is generally not feasible. Instead, there has been some recent interest in adapta...