位置敏感探测器PSD（Position Sensitive detector PSD）具有位置分辨精度高（可达1～2 μm）、输出实时性好（响应时间约几微秒）、系统简洁的特点，在位置探测及相关领域内获得了广泛的应用；但PSD的输出信号小，易受到电路噪声的影响，若要充分发挥其性能，则需要高精度、高稳定度、低噪声的测量电路。针对PSD这种较高的使用要求，通过对其等效模型的分析，找到了影响位置分辨精度的主要因素，并提出了一种新形式的测量电路，减少了测量电路级数，降低了电路的噪声以及测量电路内部的漂移，同时具有对位置测量非线性的校正功能。采用上述原理以S1880 PSD建立的位置测量系统的位置分辨达到2～3 μm。
上传时间： 2013-11-05
上传用户：skhlm
This program provides an example of how to configure the C8051F02x device to operate from an external 22.1184MHz crystal attached to the XTAL1 andXTAL2 pins. Also enables Missing Clock detector.
标签： C8051F02x configure provides program
上传时间： 2014-01-09
上传用户：1079836864
锁相回路可视为一个输出相位和输入相位的回授系统用以同步输入参考讯号和回授后输出信号。并让其操作同样的频率。如(图一)所示，简单锁相回路[3,4]是由三个电路构成，分别为相位侦测器（Phase detector）、回路滤波器（Loop Filter）、压控荡器（VCO）
上传时间： 2015-08-15
上传用户：franktu
A new blind adaptive multiuser detection scheme based on a hybrid of Kalman filter and subspace estimation is proposed. It is shown that the detector can be expressed as an anchored signal in the signal subspace and the coefficients can be estimated by the Kalman filter using only the signature waveform and the timing of the desired user.
标签： multiuser detection adaptive subspace
上传时间： 2015-09-06
上传用户：xieguodong1234
It may analyze the window structure, the advancement and the window news, has the very greatly auxiliary function to the development work. When we need to study some object, so long as assigns out its search window, drives the detector the indicator to assign the window/to control on to release then. Under, the author on and everybody same place, makes with VC to belong to own Spy++.
标签： the window advancement structure
上传时间： 2013-12-30
上传用户：ghostparker
This paper presents the key circuits of a 1MHz bandwidth, 750kb/s GMSK transmitter. The fractional-N synthesizer forming the basis of the transmitter uses a combined phasefrequency detector (PFD) and digital-to-analog converter (DAC) circuit element to obtain >28dB high frequency noise reduction when compared to classicalfrequency synthesis.
标签： fractional-N transmitter bandwidth circuits
上传时间： 2016-04-13
上传用户：er1219
SIFT代码，包括detector & descriptor.Matlab版本，内有详细的说明文档。值得一看
上传时间： 2014-11-17
上传用户：helmos
极大值抑制与双阈值门限得到图像边缘： * nonmaxsuppts.m Code for performing non-maxima suppression and thresholding of points generated by a feature/corner detector. It optionally returns sub-pixel feature locations.
标签： nonmaxsuppts thresholding suppression non-maxima
上传时间： 2016-07-07
上传用户：guanliya
The object detector described below has been initially proposed by P.F. Felzenszwalb in [Felzenszwalb2010]. It is based on a Dalal-Triggs detector that uses a single filter on histogram of oriented gradients (HOG) features to represent an object category. This detector uses a sliding window approach, where a filter is applied at all positions and scales of an image. The first innovation is enriching the Dalal-Triggs model using a star-structured part-based model defined by a “root” filter (analogous to the Dalal-Triggs filter) plus a set of parts filters and associated deformation models. The score of one of star models at a particular position and scale within an image is the score of the root filter at the given location plus the sum over parts of the maximum, over placements of that part, of the part filter score on its location minus a deformation cost easuring the deviation of the part from its ideal location relative to the root. Both root and part filter scores are defined by the dot product between a filter (a set of weights) and a subwindow of a feature pyramid computed from the input image. Another improvement is a representation of the class of models by a mixture of star models. The score of a mixture model at a particular position and scale is the maximum over components, of the score of that component model at the given location.
标签： 计算机视觉
上传时间： 2015-03-15
上传用户：sb_zhang
19.2 Mbps 4x4 BLAST&MIMO detector with soft ML outputs。纯英文论文，外国文献
上传时间： 2015-04-21
上传用户：asdf20
