Báo cáo hóa học: " Research Article Low Delay Noise Reduction and Dereverberation for Hearing Aids" pptx

... Processing Volume 2009, Article ID 437807, 9 pages doi:10.1155/2009/437807 Research Article Low Delay Noise Reduction and Dereverberation for Hearing Aids Heinrich W. L ¨ ollmann (EURASIP Member) and Peter ... and background noise reduce listening comfort and speech intelligibility, especially for hearing impaired persons [10, 11]. Therefore, algorithms for...

Ngày tải lên: 21/06/2014, 22:20

... Inequalities and Applications Volume 2011, Article ID 761430, 9 pages doi:10.1155/2011/761430 Research Article General Fritz Carlson’s Type Inequality for Sugeno Integrals Xiaojing Wang and Chuanzhi ... of inequalities for Sugeno integral was initiated by Rom ´ an-Flores et al. 2, 3 and then followed by the others 4 –11. Now, we introduce some basic notation and properti...

Ngày tải lên: 21/06/2014, 05:20

... following proposition is the main result of 8. Proposition 1.3. M B M P and M B are operators on K of weak type 1, 1 and strong type p, p for 1 <p≤∞. The paper is organized as follows. ... 2.1. a For k ∈ N and f ∈ L 2 K, there exists C k > 0 such that g k  f   α,2  C k f α,2 . 2.2 b For 1 <p<∞ and f ∈ L p K, there exist positive constants C 1...

Ngày tải lên: 21/06/2014, 06:20

... estimation in (19) is in block form, which is not suitable for real- time design in the MC-CDMA communication systems. A recursive parameter estimation for (19)andanestimatefor noise sequence u n (k − ... equal for despreading. That is, the channel estimation and equalization should be done before despreading. Therefore, the notch filter will destruct the orthogonality and is not f...

Ngày tải lên: 21/06/2014, 08:20

... linearity and low- noise performance of the whole transmission chain. Moreover, a multi-radio transmitter has to support variety of different frequency bands and wide range of different channel bandwidths. Furthermore, ... implementation costs. Therefore, a multi- radio transceiver that combines low power and low costs by sharing reconfigurable components and that is capable of ge...

Ngày tải lên: 21/06/2014, 11:20

... sensor nodes for noise reduction in hearing aids. Furthermore, the DANSE algorithm is reformulated in a noise reduction context, and a batch-mode analysis of the noise reduction performance of ... Processing Volume 2009, Article ID 530435, 14 pages doi:10.1155/2009/530435 Research Article Robust Distributed Noise Reduction in Hearing Aids with External Acoustic S...

Ngày tải lên: 21/06/2014, 20:20

... Watts for a 64 kbps service and to 13.4 Watts for a 128 kbps service. These high sums of power underline the need for using this technique. 7.2. Usage of Longer TTI and Space Diversity. Fortunately, some ... of users and their demand for more advanced services, the available resources have to be utilized efficiently [1]. The 3GPP realized the need for broadcasting and mul- tic...

Ngày tải lên: 21/06/2014, 22:20

... Wireless Communications and Networking Volume 2008, Article ID 291450, 7 pages doi:10.1155/2008/291450 Research Article Downlink Coexistence Performance Assessment and Techniques for WiMAX Services ... interference and system performance, for exam- ple, downlink carrier-to -noise ratio (CNR) and downlink carrier-to-interference plus noise ratio (CINR) are defined. In Secti...

Ngày tải lên: 21/06/2014, 23:20

... X k+1 , X k ,andU k are discrete Fourier transforms of size M ×N corresponding to the variable in lower case letters; and f is 2D frequency index. H is the Fourier transform of PSF and it is known ... (BSNR) anddefinedas[19] BSNR = 10 log 10    Hx − (1/MN)  Hx  2 /σ 2 MN  ≈ 10 log 10    Hx−(1/MN)  Hx  2 /  (y−Hx) 2  , (22) σ is the noise standard deviation. The following sta...

Ngày tải lên: 22/06/2014, 00:20

... possible for a binaural beamforming system, for instance, both hearing aids could transmit their received microphone signals to a central device where the beamforming is performed, and the result ... left and right hearing aids enables binaural beamforming. Such a binaural system with one microphone on each hearing aid offers improved noise reduction compared to a two-microph...

Ngày tải lên: 22/06/2014, 00:20