Dispose the challenge of the large-scale video total management system
Take big strides to resource distribution of magnanimity and socialization applied direction to move forward with the video monitor system, IP, high definition, intelligent technological development trend let the video control the trade and enter a brand-new transition period. While the traditional simulation video controls system implementation to transform the staging on a large scale, in the course of designing the lectotype in newly-built video monitor system framework, users have not merely put forward the harsh requirement day by day for the sharpness, real-time nature, reliability and ease of use of the picture, have put forward energy-conservation, high-efficient system integration in environment protecting mode and considered the requirement for apparatus manufacturers and the system integration trader. Provide with the same characteristics and prices two product, user must choose, consume energy ... Read more
Altera Company (NASDAQ: ALTR) Announce today, show to 14 industry firsth integrate the serial digital interface (SDI) by IBC2010 that centre hold by RAI on Amsterdam in will it be 9 September company Single for chip for 4K format conversion reference design,there are for 5 drawing room A19 location on exhibition. Pro A/V of future generation such as digital cinema and digital signature, site activity and video conference nowadays employ promoting the use of 4K definition.
Altera 4K reference design includes shortening the video and employing and designing the periodic video to design the work bench greatly. This includes supporting video and image manipulation (VIP) of MegaCore function The suit, the designer can utilize its convenient development to customize video and image manipulation to design. Also include the hardware on Stratix IV GX A/V kit to demonstrate, it supports 4K video gathering, edit, returns, format conversion and projection solution, and Nios II embedded pro... Read more
Summary
The synchronism is an important problem in communication system. In digital communication, besides obtaining the carrier synchronization of the coherent carrier, the synchronous abstraction of location is a even more important link. Because only confirm the initial moment of every code element, could make the accurate judgement to the numerical information. Utilize the whole digital phase-locked loop not to draw the bit synchronizing signal in the return to zero code from the unipolarity that is received directly.
General location synchronisation circuit mostly adopt the standard logical device to form according to the traditional number system design method, have great power consumption, the shortcoming with low reliability. Design the circuit to have very high flexibility and reliability, all right up integration and design speed with FPGA, overall performance of the enhancement system. This text provides a kind of digital phase-locked loop bit synchronization decto... Read more
Summary: Main introduction embedded products but design of the test system of development to the high real-time nature, the simple introduction is tested the characteristic of the system, from the whole design philosophy of testing the system, design concept, including respects such as software and hardware,etc., provide the detailed introduction. In addition, the pluses and minuses of more different conceptual design, offer several kinds of different thinkings for developing the similar test system. The ones that discussed briefly this text uses used the management software of the example finally.
Keyword: Real-time embedded system; Test system; RTX; FPGA
Foreword
The embedded system is to regard employing as the centre, are based on computer technology, can meet the special purpose computing system to strict requirements such as the function, reliability, cost, volume, power consumption,etc. in real application. It is advanced computer technology, semiconductor eng... Read more
MathWorks releases today 2010b(R2010b) Edition of MATLAB and Simulink product series. Collect including with expanded tool and function in this edition:
New communication system design function in MATLAB
Adjustment for PID control of melting automatically
GigE Vision hardware standard supported
Simulink and Stateflow strengthened support to establish the reusable model
R2010b has also introduced SimRF, this has added modeling of system level of the basic framework of RF receiver. In addition, edition this return renewal including the intersection of Polyspace and code, prove the intersection of products and inclusive 84 the intersection of MathWorks and product.
Support advanced MATLAB of programming upgrade, include self-defining to enumerate data pattern, 64 the intersection of integer and arithmetic and some development environments, strengthen the function.
Other MATLAB serial important functions in R2010b are as follows,
Parallel Computing Toolb... Read more
Summary: Adopt O. 18 μ M CMOS technological design a form chip integrates the extremely narrow faint pulse detection system, this chip includes inputting matching, amplifier, pulse stretcher, drives and the electric current generating circuit of reference voltage of band gap. Measure system sensitivity in order to improve, the article has adopted cascade and active inductance of the multiple amplifier. Test indicates this chip can measure the pulse of 1ns pulse width 10mV, outputs the digital signal, can apply to 00K systematic receiver, receive the clear video which exceeds 40M data rate. Low power consumption of this chip, low cost, have research and practice value to popularize.
Keyword: Pulse; Detection; Amplifier; Active inductance
0 foreword
With the development of large scale integrated circuit, the single chip scheme is because of the low cost, small, power consumption low grade advantage, adopted by the increasingly many electronic system.
The i... Read more
Summary: Adopt the automatic focusing method based on picture technology, analyse the quality of the figure according to the picture, finish image preprocessing, sharpness discrimination, obtain the present imaging state. Through the control electric machine, finish focusing and operating. Among them key technology is to analyze the evaluation function of image quality. Computational complexity loud calculating the complicated scheduling problem, adopt median filtering and gradation linear transformation picture preoonditioning method to algorithm of focusing, the homework of assembly line, ” The table tennis ” Operate, one pair of butterfly processors multiplexes, the work pattern that group - 2FFT algorithm combines together. The experimental result verifies, this method has solved the speed problem of complicated system control of automatic focusing algorithm.
Keyword: Automatic focusing; Image manipulation; Focus and operate
Because of the technical automat... Read more
The simulation technique of modern simulation [1 ] is applied to system design, system analysis and education and training extensively. In the course of imitating, carry the analogue device or artificial module forward and send the order data in a large amount, and read the parametric situation of the state on the working equipment from imitating. While carrying on analog simulation to large-scale commercial installation and system, the complexity controlled in data acquisition is more abominable [2 ]. Through improving the structure of the data acquisition controller, improve automation and integrated intensity of the data acquisition controller, can raise the efficiency of simulation equipment data acquisition and control of large-scale simulation effectively.
FPGA and SoPC technical development offered the new solution for this. IP kernel (IP Core) It is a hardware description language procedure with particular circuit function, can revise and customize more conveniently, in ... Read more
Summary: With the development of integrated-circuit technique, FPGA is with its small, fast, low power dissipation, design are flexible, advantage of benefiting system integration, expanding the staging etc., widely applied to high speed digital signal transmission and data processing. EnDat data interface is a two-way digital interface which is suitable for the Coder. EnDat but the position value of the transcoder, can transmit or keep the information or save update in the Coder more newly. Characteristic, function, sequence, data transmission, OEM data storage in this introduction EnDat interface, and the subsequent circuit cipher scheme of data acquisition of Coder, is based on the design of FPGA Coder interface, in order to carry on the communication between Coder and DSP processor.
Keyword: EnDat; Coder; FPGA
O Foreword
EnDat interface is that HEIDENHAIN is the digital, synchronous serial data transmission protocol of full duplex that the Coder is designed speci... Read more
0 foreword
In and deal with in the acquisition of signal, often only care about the signal with narrower bandwidth and high cycle characteristic, broadband noise become must be filtrated harmful to the composition at this moment. The frequency spectrum of the signal is carrying the most essential characteristic of the information source, but the signal gathered actually will be influenced by broadband noise or broadband interference inevitably, how to dispel these noises and interfere with, strengthen the gamma line of goal and have important meanings in the field of SIGPROC signal processing fast, high-efficiently. ALE utilizes periodicity of the narrow-band signal and weak associativity of the broadband noise, can draw the signal out under the unknown terms of signal characteristic from the noise adaptively, apply to target discrimination and feature extraction extensively. FPGA takes up the important position in the field of digital signal processing because of having high-level ... Read more
