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In this paper, a single antenna interference cancellation (SAIC) by means of sequential importance sampling (SIS) is studied. The contribution of the proposed algorithm is that the maximum a posteriori (MAP) estimates of the transmitted co-channel symbols is recursively computed without explicit channel information, and the joint posterior distribution of the channels is derived. The Symbol error...
For the orthogonal frequency-division multiplexing (OFDM) system, one can estimate the channel responses (CRs) based on frequency-domain (FD) pilot symbols. On the other hand, one can also estimate the time-domain (TD) channel impulse response by inserting a unit pulse ahead of each OFDM block. However, there is no analytical comparison between the CR estimation based on FD pilot symbols and TD unit...
Torque estimation using mechanomyographic (MMG) signal is typically calculated by the root mean square (RMS) amplitude. Raw MMG signal is processed by rectification, low-pass filtering, and mapping to estimate torque. However, one-to-one mapping is not accurate because if the input is interfered by noise, the output follows directly. In this work, beside RMS amplitude, another significant feature...
The correlative interferometer is widely used for finding the direction of arrival with high accuracy, flexibility and broadband operation range. In this paper, the bias and mean squared error of these direction estimates with loss functions such as least squares, correlation coefficients and cosine function, are derived for the correlative interferometer, respectively. The explicit expressions of...
In this paper, we propose a face detection method based on statistical estimation for background. According to the characters of facial features provided by Viola, the method utilizes background estimation to produce training data, which improves segmentation performance of the detector. The system applies weight information of neural network to select strong facial features, and a cost function based...
The true Cramer-Rao bound (CRB) for the variance of unbiased, data-aided symbol-timing estimate has been obtained from linearly modulated waveforms through an additive white Gaussian noise channel with random carrier phase already. However, in practice, it is unusual to perform carrier synchronization prior to timing recovery. In this paper, we deduce the true CRB for data-aided time delay and frequency...
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