针对UHF读写器设计中,在符合EPC Gen2标准的情况下,对标签返回的高速数据进行正确解码以达到正确读取标签的要求,提出了一种新的在ARM平台下采用边沿捕获统计定时器数判断数据的方法,并对FM0编码进行解码。与传统的使用定时器定时采样高低电平的FM0解码方法相比,该解码方法可以减少定时器定时误差累积的影响;可以将捕获定时器数中断与数据判断解码相对分隔开,使得中断对解码影响很小,实现捕获与解码的同步。通过实验表明,这种方法提高了解码的效率,在160 Kb/s的接收速度下,读取一张标签的时间约为30次/s。 Abstract: Aiming at the requirement of receiving correctly decoded data from the tag under high-speed communication which complied with EPC Gen2 standard in the design of UHF interrogator, the article introduced a new technology for FM0 decoding which counted the timer counter to judge data by using the edge interval of signal capture based on the ARM7 platform. Compared with the traditional FM0 decoding method which used the timer timed to sample the high and low level, the method could reduce the accumulation of timing error and could relatively separate capture timer interrupt and the data judgment for decoding, so that the disruption effect on the decoding was small and realizd synchronization of capture and decoding. Testing result shows that the method improves the efficiency of decoding, at 160 Kb/s receiving speed, the time of the interrogator to read a tag is about 30 times/s.
上传时间: 2013-11-10
上传用户:liufei
Libnet is a cross-platform library aimed at game developers. It has an abstract high level API, which encourages developers to make their games portable across platforms and network types
标签: cross-platform developers abstract library
上传时间: 2015-01-14
上传用户:ghostparker
High Performance MySQL (O Reilly,2004)
标签: Performance Reilly MySQL High
上传时间: 2015-02-21
上传用户:nanfeicui
Abstraction, libraries, and efficiency in C
标签: Abstraction efficiency libraries and
上传时间: 2015-02-26
上传用户:JIUSHICHEN
NTL is a high-performance, portable C++ library providing data structures and algorithms for manipulating signed, arbitrary length integers, and for vectors, matrices, and polynomials over the integers and over finite fields.
标签: high-performance algorithms structures providing
上传时间: 2014-01-05
上传用户:水中浮云
FlexCompress is a high-speed compression library developed to provide archive functionality for your applications. This solution provides flexible compression and strong encryption algorithms that allows you to integrate archiving or backup features into your programs in a fast and easy way.
标签: functionality FlexCompress compression high-speed
上传时间: 2015-04-04
上传用户:s363994250
SR-tree is an index structure for high-dimensional nearest neighbor queries,C++ sourcecode. SR-tree outperforms the R*-tree and the SS-tree especially for high-dimensional and non-uniform data which are likely to appear in the actual image / video applications.
标签: high-dimensional structure neighbor SR-tree
上传时间: 2013-12-10
上传用户:zjf3110
A high quality VC++ source code implementing the very important context-based adaptive arithmetic coder.
标签: context-based implementing arithmetic important
上传时间: 2015-04-10
上传用户:changeboy
Multicode High-Speed Transmission for Wireless Mobile Communications
标签: Communications Transmission High-Speed Multicode
上传时间: 2014-01-08
上传用户:GavinNeko
Control of High Voltage 3-Phase BLDC Motor
标签: Control Voltage Phase Motor
上传时间: 2015-04-21
上传用户:silenthink