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Research and Improvement of Speaker Recognition Technology

Speaker recognition technology is a hot topic which has a wide range of applicationsin such areas such as security, public security and judicial, military, financial andinformation services.In the pure voice environment, the e?ect of recogni....
The Study and Implementation of LDPC Coding & Decoding Arithmetic

LDPC code is a kind of linear block error-correcting code defined by the sparseparity-check matrix, which has been proved to be a class of Shannon-limit approachingcodes. By using a linear complexity sum-product algorithm, its decoding compl....
Research on Space-Time Coding in MIMO Systems

With the integration of Internet and multimedia applications in next generation wireless communications, the demand for wide-band high data rate communication services is growing. As the available radio spectrum is limited, higher data rates....
Study on Feature Extraction and Classification of Doppler Ultrasonic Signal

Ultrasound is a sound whose frequency tops out 20 kHz. It has not been heard by human. Along with the Austrian scientists discovered that the Doppler effect is phenomenon of acoustic, ultrasound is widely applied, particularly in the medical....
Study on Blind Source Separation of Linear and Instantaneous Mixtures

Blind source separation (BSS) is a rising technology in signal processing, and has potential application values in seismic exploration, sound processing, image enhancing, sonar, radar and biomedical engineering etc. The linear and instantane....
Study on Underwater Target Ultrasonic Echo Signal Feature Extraction Technology

In China, up to now, the homemade depth bomb weapons are equipped with traditional contact fuze, that has low effectiveness in attacking the enemy's submarine, and can hardly meet the requirement of modern naval warfare. In overseas develop....
Study of Modulation Identification and Signals Feature Extraction

Automatic modulation identification is widely used to confirm the interference identification, radio interception, electronic countermeasures, and signal detection, and other fields. This paper provide some mothodes to detect the AM, MASK, M....
Parameter Estimation of Linear Frequency Modulated Signals Based on MP Algorithm

LFM signals are widely used in multitudinous signal processing area, such as radar, audio, sonar and so on.Therefore parameter estimation algorithms of LFM signals are deeply researched. This dissertation is mainly concerned with the estimat....
On the Iterative Detection Algorithm for Turbo-BLAST

Space-time coding technique, which can achieve improved spectral efficiency by exploiting multiple antennas, has inspired many interests in communication area due to its great potential ability in realizing the wide-band wireless communicati....
A Research of Prosody Modeling and Synthesis Method in Chinese TTS

During the past few decades, with the development of computer and other related subjects, the speech synthesis technique progressed a lot. Nowadays, speech synthesis technique focuses on Text-To-Speech (TTS). TTS is a technique that can conv....

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