51 Research and Design, Electronic Engineers website - Embedded Systems, MCU, DSP, EDA, Test and Measurement, Components, Communications, Power, Microelectronics, Semiconductors

Sunday, September 6th, 2009 at 04:17 | No comments

Categories: DSP

Tags: connection, development, DSP, GPS, High dynamic, radio frequency

Short Content: GPS is the high accuracy whole world satellite positioning navigation system which the US establishes, in domains and so on land, sea, aviation and astronautics has the widespread application. But the high dynamic GPS receiver may apply in the missile, the satellite, the aircraft navigation and so on many situations, but because the high dynamic GPS receiver involves the war industry and so on sensitive domain, outside the native country correlation technique or the product to our country are the ...

Friday, July 10th, 2009 at 00:02 | No comments

Categories: DSP

Tags: DSP, radio frequency, tool

Short Content: The software radio the basic philosophy is take open, expandable, the structure most Jan's hardware as the general platform, with may promote the multi-correspondence function, may replace the software realize as far as possible. Its central thought is: Constructs one to have standardized, the modular general hardware platform, and loads through the software realizes each kind of wireless communication function one kind of open style architecture. This article based on this thought that first constructs DSP and the PC machine ...

Friday, December 12th, 2008 at 06:22 | No comments

Categories: Communication Networks

Tags: FPGA, radio frequency, receiver, software radio

Short Content: Abstract: Introduced now the satellite positioning system (GNSS) in receiver's antenna size enlargement technology, the software radio technology and FPGA realize the technology, as well as they in two-dimensional ballistic correction blasting fuse (2-DCCF) application. Finally, in the article gave has used in revolving the ball two-dimensional ballistic correction blasting fuse's GPS receiving system's principle of work diagram. Key word: Two-dimensional ballistic correction blasting fuse; Satellite positioning signal receiver; Revolving ball Abstract: In this paper, the beam-forming ...

Thursday, December 11th, 2008 at 17:02 | No comments

Categories: Communication Networks

Tags: controls remotely the, Micro controller, radio frequency, The RKE

Short Content:     The RKE system regarding enhances automobile's security, the control to have the important meaning. The majority RKE systems have the automobile security, the warning function as well as use in the automobile, suitcase's entrance guard control, some systems also include the function which the remote control start automobile and the automobile seek. New generation RKE uses the two-way communication hopefully, installed controls remotely vehicle door switch PKE in the automobile (Remote Keyless Entry) the plan regarding automobile's disposition, already ...

Thursday, December 11th, 2008 at 14:49 | No comments

Categories: Communication Networks

Tags: measuring instrument, pxi main line, radio frequency

Short Content: Refers to PXI and the hypothesized instrument, possibly will have many engineers to have a summary impression, that will be, the hypothesized instrument will grasp the modulation design concept, will rely on the PXI main line platform, will be adding on uses in common the PC resources, in domains and so on test survey, control, monitoring had already obtained not the vulgar achievement. Might regarding radio frequency PXI measuring instrument's concrete progress, still have many engineers the understanding not to ...

Thursday, December 11th, 2008 at 12:36 | No comments

Categories: Communication Networks

Tags: power amplifier, radio frequency, TD-SCDMA

Short Content: 　　TD-SCDMA (synchronization code division multiple access turning on) is third generation mobile communication one of three big mainstream standards, is our country has the proprietary intellectual property rights correspondence standard, it symbolizes that China already entered the world advanced ranks in the mobile communication domain, at present, the TD-SCDMA commercialized advancement is carrying on [1] smoothly. What the TD-SCDMA system uses is the QPSK/8PSK modulation, in the high speed data transmission application, has used like the 16QAM such modulation system. ...

Tuesday, December 9th, 2008 at 05:02 | No comments

Categories: Communication Networks

Tags: blue tooth, connection, Embedded, family network, gateway, radio frequency

Short Content: Abstract: The blue tooth is one kind of short distance wireless communication technology, as a result of its low cost, the low power loss and the redundant reliable merit is widely accepted by the modern family network. In the article introduced the blue tooth technology and the family network basic concept which constitutes by each kind of information electrical appliances, as well as Motorola Corporation's embedded processor MCF5272 some key property characteristic, and elaborated realizes the family blue tooth gateway's ...

Tuesday, December 9th, 2008 at 00:36 | No comments

Categories: Communication Networks

Tags: microreader, radio frequency, RFID

Short Content: Abstract: In the EPC technology and the radio frequency recognition (RFID) in the technical rapidly expand and the widespread application, the RFID middleware already was the RFID system's energetic main center. This article narrated the EPC system, the RFID middleware, and has designed one in this foundation based on EPCglobal ALE the standard embedded RFID middleware, enables the standard the RFID middleware to be possible to integrate on the microreader, realizes the integrated thought. Key word: Product electron code; ...

Monday, December 8th, 2008 at 17:56 | No comments

Categories: Communication Networks

Tags: radio frequency, receiving and dispatching chip

Short Content: Along with Chinese 3G development step's quickening, the 3G network construction enters the large scale development, the indoor covers the focal point which into the operator and the equipment system manufacturer pays attention together. Facing the future multi-system coexistent condition, how to construct an economy to be effective, the stable property, the power loss will be low, the volume will be small, and will construct the nimble multi-net closed circuit indoor distribution system is the existing operator is urgently needed ...

Friday, December 5th, 2008 at 16:35 | No comments

Categories: Communication Networks

Tags: Data acquisition, Digital supersonic image formation, radio frequency

Short Content:     Foreword 　　The acoustic feature difference which the medicine supersonic image formation is uses the ultrasonic wave through human body each organization when reflected to differentiate the different organization, and demonstrates internal organs' contact surface and the organization internal slight structure by the image form. This inspection way unified the ultrasonic physics, the modern electronic technology and the biomedicine and so on many kinds of technologies, is after X image formation technology, develops in the medicine rapidly, applies the most ...