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In this paper, a novel pseudo noise (PN) code acquisition scheme based on sequential estimation is proposed, which can not only achieve code acquisition for both inverted and non-inverted PN codes, but also demodulate the spreading data. Simulation results show that the proposed scheme has approximately half the complexity of the conventional scheme while exhibiting a similar mean acquisition time...
A multi-dimensional set partitioning (MDSP) is proposed for reduced-state sequence estimation of multi-path fading multiple input multiple output (MIMO) channels. The proposed MDSP takes channel state information into account when making a set partition because MIMO channels change the distance between symbol vectors in a multi-dimensional constellation. To reduce complexity of the proposed MDSP,...
The existing sequential estimation algorithms repeatedly accumulate the previous erroneous information. Thus, their performance is usually poor in the low SNR region, especially when the sequence initial state is unknown. This paper presents a new method, called Innovation Net Accumulation-Sequential Acquisition (INASE) for sequential acquisition. By designing innovation net accumulating scheme, the...
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