detectors for optical telescopes

Ionizing Radiation Detectors for Medical Imaging doc

Ngày tải lên : 06/03/2014, 12:20

... radiation detectors for medical imaging, for digital radiography and autoradiography He has been developing silicon microstrip detectors List of Contributors and silicon or GaAs pixel detectors for ... Agents 5.2.3.1 Detectors and Detector Requirements for Dichromography 5.2.4 Phase Effects 5.2.4.1 Detectors for Phase Imaging 5.3 Conclusion and Outlook Acknowledgment Appendix A Image formation and ... and Verijkation Measurements 11.4 Point Detectors 11.4.1 Ionisation Chambers 11.4.2 Themzoluminiscent Detectors 11.4.3 Diode Detectors 11.4.4 Diamond Detectors 11.5 Film 11.6 Electronic Portal...

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A Database and Evaluation Methodology for Optical Flow pdf

Ngày tải lên : 17/03/2014, 00:20

... 16.6 for flow, and 13.8 for stereo (a reduction by 17%); in the Disc regions the median is now 38.0 for flow, and 22.5 for stereo (a reduction by 41%) A possible explanation for the smaller performance ... the performance measures used, (2) the statistics computed, and (3) the sub-regions of the images considered 4.1 Performance Measures The most commonly used measure of performance for optical ... evaluate optical flow algo- Creating a ground-truth (GT) database for optical flow is difficult For stereo, structured light (Scharstein and Szeliski Int J Comput Vis Fig (a) The setup for obtaining...

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Báo cáo " Monte Carlo simulations and DSP application for optical parameter measurement " ppt

Ngày tải lên : 28/03/2014, 13:20

... the flowchart of photon movement in a biological sample Fig Flowchart for Monte Carlo simulations Monte Carlo simulations for biological samples begin by photon stepsize and photon weighting Photon ... technique, using parallel technique allows to reduce calculation time up to 50% • Optical parameters measurement setup: Fig Optical parameter measurement based on MC simulations and DSP N.T Anh et al ... 61-70 67 The measurement to verify optical parameters based on Monte Carlo simulations and the Texas Instrument TMS320VC5510 DSK kit is shown in Fig Algorithms for the Monte Carlo simulations are...

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IEC 60874 14 4 connectors for optical fibres and cables detail specification for fibre optic adaptor (simplex) type SC for multimode fibre

Ngày tải lên : 04/04/2014, 11:52

... the format(s): to write specifications to use in a tender for educational purposes full text Other comments: raster image for a lawsuit 17 for quality assessment 10 for ... ELECTROTECHNICAL COMMISSION CONNECTORS FOR OPTICAL FIBRES AND CABLES – Part 14-4: Detail specification for fibre optic adaptor (simplex) type SC for multimode fibre FOREWORD 1) The IEC (International ... Dabhi/5931917101 Not for Resale, 02/12/2006 07:07:37 MST IEC 60874-14-4 QC 910004XX0004 First edition 1997-06 Connectors for optical fibres and cables – Part 14-4: Detail specification for fibre optic...

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high precision dynamic alignment and gap control for optical near field nanolithography

Ngày tải lên : 06/05/2014, 08:53

... a gap distance of the order of nanometers for parallel optical near-field nanolithography In optical nearfield nanolithography, the distance between the optical mask and the substrate needs to be ... process In theory, the ISPI gratings can be designed for an arbitrarily gap range.13 For example, it has been used for gaps of tens of micrometers for parallel zone plate array lithography12,14 and ... [Fig 5(d)] B ISPI alignment As mentioned before, for near-field optical nanolithography, the alignment between the mask and the substrate is critical For parallel lithography using multiple antennas,...

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Báo cáo hóa học: " Design and Fabrication of Fiber-Optic Nanoprobes for Optical Sensing" pdf

Ngày tải lên : 21/06/2014, 08:20

... beam (FIB) fabrication of nanostructures has been applied on optical fibers for chemical sensing [18] FIB milling for nanostructure formation allows precise control of size and shape in nanometer ... nanostructures on the tips of optical fibers, a special fiber holder that could fit in the FIB stage was fabricated Optical Measurement The optical measurement system used for nanoprobe is schematically ... Figure A nanoaperture was formed on the tip end for optical excitation The size of the nanoaperture is related to the angle between fiber axis and evaporation direction For example, if the angle...

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Báo cáo hóa học: " Research Article Enumerative Encoding of TMTR Codes for Optical Recording Channel" pot

Ngày tải lên : 21/06/2014, 08:20

... demonstrated on error performance through a computer simulation on the EPRII optical channel of the form P(D) = (1 + D)3 Figure depicts the optical recording system for simulation An 8-state ... the TMTR code on the EPRII optical channel provides nearly 2.7 dB of coding gain above the rate of 8/16 EFMPlus code on the EPRII optical channel Therefore, from the performance comparison made ... 8/11 TMTR code outperforms the EFMPlus code in error performance when applied to partial response optical recording channels References [1] K A S Immink, “EFMPlus: the coding format of the multimedia...

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Báo cáo hóa học: " Research Article Novel Techniques of Single-Carrier Frequency-Domain Equalization for Optical Wireless Communications" doc

Ngày tải lên : 21/06/2014, 08:20

... 0.01 W, the performances of all SCFDE schemes are almost the same due to their lower PAPR For an input signal power of W for QPSK and 0.1 W for 16 QAM and 64 QAM, DQO-SCFDE performs better than ... clipped and distorted resulting in performance loss We also propose in this paper two other schemes for generating real, positive signals with low PAPR for IM/DD optical DOW communications using SCFDE ... other newly proposed low PAPR schemes for optical communication using SCFDE which we call Repeat-and-Clipped Optical SCFDE (RCO-SCFDE) and Decomposed Quadrature Optical SCFDE (DQO-SCFDE) are presented...

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Báo cáo hóa học: " Research Article Cyclostationarity Detectors for Cognitive Radio: Architectural Tradeoffs" pptx

Ngày tải lên : 21/06/2014, 11:20

... Detector performance is maximized for a small Nb value, which implies that performance can be maximized for a limited hardware complexity Aggregating harmonics still further causes performance to ... performs according to Nb For this purpose, the probability of detection is computed as a function of the SNR under AWGN conditions for various Nb values Other parameters are kept constant For ... increase in integration time impacts the performance of the detector for a given threshold value For instance when an SNR of −7 dB is targeted and for a threshold set to 15, no detection is possible...

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Báo cáo sinh học: " Research Article Fast Multi-Symbol Based Iterative Detectors for UWB Communications" pptx

Ngày tải lên : 21/06/2014, 16:20

... 1.1 dB gain for HD-MSTR and 0.6 dB for SD-MSTR) and the performance gap becomes smaller when M is larger When M = 10, the gap reduces to around 0.5 dB for HD-MSTR case and about 0.1 dB for the SD-MSTR ... are obtained by correlating the waveform corresponding to b0 with the mth symbol waveform Hence, the BER performance is the same as that of the ATR in (19) For the nth iteration, the method ﬁrstly ... statistical information to update the weights for each iteration (v) For each iteration, Step requires 2M(M − 1) multiplications and M additions to attain the decision variables for all M symbols...

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báo cáo hóa học:" Research Article Reliable Event Detectors for Constrained Resources Wireless Sensor Node Hardware" doc

Ngày tải lên : 21/06/2014, 20:20

... of the distance for the speech period of the signal set SS2 (a) event detector performance for the parameters {tol = ±0.0055, L = 160 milliseconds} (b) event detector performance for the parameters ... (a) the events signaled for the signal s1 ∈ SS1 (b) the events signaled for the signal s2 ∈ SS1 (c) the events signaled for the signal s3 ∈ SS1 total number is plotted for the 20 seconds signal ... implementation, for the parameters pairs pp1 and pp2 5.5.6 TOS IMP Event Detector Performance for a One-Hope WSN of Micaz In the present section, the TOS IMP event detections are presented for a one-hop...

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Báo cáo hóa học: " Research Article Reed-Solomon Turbo Product Codes for Optical Communications: From Code Optimization to Decoder Design" docx

Ngày tải lên : 21/06/2014, 23:20

... Elementary decoder for row N Elementary decoder for column N Elementary decoder for column ··· Elementary decoder for row Elementary decoder for column ··· Elementary decoder for row N Connection ... Elementary decoder for row Connection block Elementary decoder for column Connection block Elementary decoder for row ··· Elementary decoder for column Connection block Elementary decoder for row Elementary ... LX330 FPGA for slice registers and slice LUTs, respectively Besides, memory resources for ··· Elementary decoder for row N Elementary decoder for column N ··· ··· Elementary decoder for row N...

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Báo cáo hóa học: " Research Article A Comparative Analysis of Kernel Subspace Target Detectors for Hyperspectral Imagery" pdf

Ngày tải lên : 22/06/2014, 23:20

... conventional detectors for the DR-II and FR-I images; in general, the kernelbased detectors outperformed the conventional detectors In particular, KMSD performed the best of all kernel-based detectors detecting ... obtained by the conventional detectors Therefore, the kernel-based detectors clearly provided signiﬁcantly improved discrimination over the conventional detectors for both the Gaussian mixture ... kernel-based detectors are much more evident than the ones detected by the conventional detectors, as shown in Figures and Figures and show the ROC curve plots for the kernel-based and conventional detectors...

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Báo cáo hóa học: " Adaptive Iterative Soft-Input Soft-Output Parallel Decision-Feedback Detectors for Asynchronous Coded " pdf

Ngày tải lên : 23/06/2014, 00:20

... waveforms which are functions of their transmitted signature waveforms, relative delays, and the channel impulse response In practical situations, this information may not be easily obtainable for ... further improve their convergence performance Furthermore, for adaptive implementation of the SISO PDFD for asynchronous DS-CDMA systems, we select practical finite feedforward and feedback filter lengths ... the system performance and computational complexity of the receiver We employ a feedforward filter which covers a two-symbol duration for each user and we consider several options for the feedback...

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Báo cáo lâm nghiệp: " The use of ultrasonic detectors for water stress determination in fruit trees" docx

Ngày tải lên : 09/08/2014, 04:20

... started was different for the various rootstock/cultivar combinations (Table I) The cultivar effect was not so marked, there was a tendency for fewer AE to be produced at any yfl for A120/3 on M.25 ... rootstock (M.9) than in at vigorous one (M.25) for a given y Also there was a threshold of y, q below which A,E start to occur This was different for the rootstocks Other evidence suggests that ... A120/3 on M.25 when compared with the other cultivars on the same rootstock On no occasion did AE for well-watered controls exceed per and were usually zero There was some evidence with individual...