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Broadcasting Receiver Design and Implement of Parallel Broadcasting Receiver Based on MPEG2 Protocol
Parallel data broadcasting is a special form of the traditional data broadcast,That is,a lot of cultural information in parallel broadcast and downloads.Traditional data broadcast with the bandwidth limitations,only limited data on the diss....
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Research on Miniaturized Planar Inverted-F Antenna
Antenna is one of the key components in wireless communication;its performance determinates the quality of communication system.With the great development of wireless communication and the improvement of integrated circuits, there come grea....
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Design and Realization of Direct Down Conversion Wideband Receiver Based on DSP
The traditional radio receivers rely on the hardware strongly, and the flexibility to different communication systems is bad. It also has the limitation in the range of work frequency. The direct down conversion wideband receiver based on D....
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Research on Direct Sequence Spread Spectrum Receiver Based on Software Radio
Recently, how to use the spectrum effectively and how to adapt to all kinds of application environment becomes a hot topic. The software radio technology put forward a feasible way to solve it. It also changes the method of designing. Direc....
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Research on Planar Monopole Antenna with L-shaped Ground Plane
In modern wireless communications,antennas used in mobile terminals are gradually developing towards miniaturization and integration,and this makes higher demands on the structure and performance of the antenna.Planar monopole antennas are....
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The Integration of Computer Science Technical Schools and Reflect on Teaching Practice
Integration of teaching is a new type of teaching methods which is currently generated by the development of vocational and technical education. That it is moving classroom teaching to the actual operating room, integrating the theory teach....
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Research and Design of WiFi Function of the Embedded Multimedia Terminal
Due to its lower construction and operating costs, higher transmission rate, transmission distance and so on the advantages, Wireless LAN is favored by us. With the widespread use of the mobile terminal, such as notebook PC and PDA, the dem....
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Research and Implementation of Digital Front End Technology in Software Defined Radio Application
Optical Time Domain Reflectometer is a measuring instrument that is essential for optical fiber communication.The main purpose of this paper is to design a hand-held, high-performance OTDR on the basis of the theory.This paper first introdu....
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Dual Cards Dual Standby User-defined Firewall for Incoming Calls Based on MTK Platform
With the rapid development of information society, mobile phones have gradually become an indispensable part of life. When the mobile communications develop to a certain extent, many people expect to own or have owned a number of mobile pho....
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Research of Physical Characteristics and Equivalent Circuit Model for High-Gain Photodetector
Photodetector is the main component of the fiber-optic communication systems and photoelectric detection, which has very importment effect. And, avalanche photodetector which with high gain due to its internal gain has become one of the mos....
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Research on Crosstalk and Mute Problems in GSM Network Level
Mobile communication has become a necessary communication style in common life along with the development and popularization of GSM mobile communication. At the same time, more and more speech quality problems in communication arise due to....
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Researcher on Power Control Algorithms for 3G Communication and the Engineering Realization
Power control is the key part of the wireless communication, as well as the important strategy in CDMA system, which not only adjusts transmit power of the mobile station and base station but also compensates channel fading and counteracts....
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The Research and Realization of the Intelligent House System Based on the Wireless Bluetooth Communic
With the rapid development of communication technology, network technology and intelligence technology, people have increasingly high demand for the comfort and the intelligent level of the home environment, and the ideas and models of hous....
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Implementation of 2.4 kbit/s MELP Based on DSP
MELP (Mixed Excitation Linear Prediction) vocoder is widely used in commercial and military speech communication because of its low-bit-rate, low-delay and low-complexity. This paper at first surveys the development and the current progress....
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Research of the Characteristics Parameters Extraction in the Personal of Speech Recognition
With the development of the technology of computer increasingly, speech recognition is very promising in application. As an interdisciplinary field, it is also theoretically very valued.In fact, speech recognition is the process of pattern....
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The Application of Constant Beamwidth Beamform on Traffic Signal Specifical Direction Sample
Beam-forming algorithm is very important in sonar, radar and radio communication system. The emergence of microphone arrays (or sensors) makes up for the deficiencies in a single microphone. It can achieve the formation of directional beam....
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Study on PESQ Algorithm Based on the Auditory Model
In this paper, the classification and performance of the objective methods were introduced in detail and the PESQ in ITU-T P.862 Recommendation was proposed. And this paper presented the structural drawing of the algorithm and gave the simu....
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The Research of the Speech Recognition Technology in Home Appliance Applications
With the development of electronic information technology, intelligent appliances are also more and more high, and similarly, the human operator of the appliance have become more sophisticated. So the applied research of the speech recognit....
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Theory of Blind Source Separation and Its Application in Mechanical Fault Diagnosis
Blind signal separation (BSS) is an interesting project in the field of signal processing. The technique of BSS can be applied in rotating machine vibration signal processing, speech signal processing, image processing, communication proces....
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Hardware Design and Implement of Navigation Receiver Based on DSP6713
The paper mainly accomplishes a digital radio navigation hardware processing platform based on digital middle frequency technology under the invention of radio navigation.The platform can achieve acquisition,tracking of the radio signal and....
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The Research of Railway Signal Analysis System Based on DSP/BIOS
As the speeding of Chinese railway train, the cab signal system has gradually become principal. The most important function of cab signal system is receiving signals from the rail. Reliable and real-time identification of the rail signal gu....
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Research and Design of LDPC-STBC Coding System
As the needs of wireless communication service grow rapidly at modern society, it has brought forward higher request to the development of communication technology. It requirements the modern digital wireless communications can not only pro....
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Research of MUSIC Algorithm and Implementation on DSP
Direction of arrival (DOA) estimation is an important research direction in array signal processing field, which has a very broad application prospects, such as radar, communication, sonar, navigation, electronic countermeasures, smart ante....
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The Implementation of EMD Algorithm Based on DSP
Signal analysis is the study of the fundamental nature; it is an integral part of our theoretical research and practical engineering applications. EMD method is a new approach that analyses non-linear, non-stationary signals in recent years....
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The Realization of Wavelet Transform Based on Switched Current
This paper introduced brief history of the development of the wavelet transform and analyzed the basic principles of wavelet transform .It gave the realization process of the wavelet transform from the time domain and frequency domain based....
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Key Problem Research of Display Information Processing for Volumetric Display
Based on the discussion of True 3D Volumetric Display theory and related experiments,this paper gives a method of True 3D Volumetric Display data generation and transmission for the real-time display application in this technology,using kno....
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DC-DC Digital Non-isolated Switching Power Supply Research & Application
With the continuous technology upgrading of semiconductors, components become smaller and faster,requiring lower voltage supply with more current.The number of different voltages on board is increasing, which makes power management become m....
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Dual Inverter High Frequency Induction Heating Power Supply Based on a Single Neuron PID Control
Induction heating power supply is the use of eddy current heating of theworkpiece a device has many advantages as a result of the industry has been widely used. At present, the domestic intermediate frequency power supply is already very ma....
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The Research of Switching PZT Amplifier with Energy-recovery Based on PWM
With the development of modern science and technology, nano-positioning system is needed more and more urgently in many areas, such as test of micro-electro-mechanical systems, ultra-precision machining, micro-surgery, SPM system, fiber-opt....
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The Design and Implementation of CNC Plastic Machine Induction VHF Power
With the plastic industry increasingly fierce competition, in order to reduce product cost, in the guarantee raw material high quality and low price, be able to saving energy, high technology and high degree of automation of plastic machine....