In a number of life-testing experiments, there exist situations where the monitoring breaks down for a temporary period of time. In such cases, some parts of the ordered observations, for example the middle ones, are censored and the only outcomes available for analysis consist of the lower and upper order statistics. Therefore, the experimenter may not gain the complete information on fa...

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into the effective operation of variable gain amplifiers (VGA) in automatic gain control (AGC) applications. Figure 1 is a general block diagram for an AGC loop. The input signal passes through the VGA to produce the output level to be stabilized. The detector’s output is compared against a setpoint voltage to produce an error signal, which is then integrated to produce a gain control voltage. ...

The present study compared the maximum usable real-ear insertion gain (REIG) permitted by 10 earmold designs that varied in the amount of occlusion. These earmolds were coupled to a high-gain hearing aid (Phonak Super-Front PPCL). In addition, the specificity of a nonoccluding earmold for the Oticon E43 hearing aid was examined. Maximum usable REIG, defined as the insertion gain obtained with t...

This article applies the gain and frequency response and maximum output selection procedures currently recommended by the National Acoustic Laboratories (NAL) of Australia to the audiograms of a representative group of adult and child clients of Australian Hearing Services (AHS) to specify the performance that is required of various types of hearing aids in order to ensure that they can provide...

In supervised learning, the redundancy contained in random examples can be avoided by learning from queries, where training examples are chosen to be maximally informative. Using the tools of statistical mechanics, we analyse query learning in a simple multi-layer network, namely, a large tree-committee machine. The generalization error is found to decrease exponentially with the number of trai...

This paper proposes a novel signal scheme called “Hybrid BLAST STBC approach” this combines MIMO (multiple-input multiple-output) and STBC (space time block code) to generate a system functionally superior to MIMO and STBC systems. This paper compares and investigates the capacity of high data rate wireless local area network systems using MIMO techniques. In particular, two different algorithm...

Maximum entropy / minimum divergence modeling is a powerful technique for constructing probability models, which has been applied to a wide variety of problems in natural language processing. A maximum entropy / minimum divergence (memd) model is built from a base model, and a set of feature functions, also called simply features, whose empirical expectations on some training corpus are known. ...

A method for designing a signal-adapted, two-channel biorthogonal wavelet filter bank that maximizes coding gain is presented using the technique of Pseudoframes for Subspaces (PFFS). At the same time the PFFS model is able to incorporate the requirements of regularity and perfect reconstruction into this design. The coding gain achieved for AR(2) signals can result in a reduction in bit rate o...