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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Estimation of Common Factors for Microstructure Noise and Effcient Price in a High-frequency Dual Factor Model
高频双因子模型 微结构 噪声公因数 效率价格 估计
2023/4/17
We develop the Double Principal Component Analysis (DPCA) based on a dual factor structure for high-frequency intraday returns contaminated by microstructure noise. The dual factor structure allows a ...
西安电子科技大学高频电子线路课件chapter5 Low Noise Amplifiers
西安电子科技大学 高频电子线路 课件 chapter5 Low Noise Amplifiers
2019/4/26
西安电子科技大学高频电子线路课件chapter5 Low Noise Amplifiers。
The SAE 2017 Noise and Vibration Conference and Exhibition is the premier technical event dedicated to mobility noise, vibration and harshness. Held biennially, this conference serves as a forum for l...
An Insitu Single-pointed Wavelet-Based Method for Noise Reduction in SAR Images
Synthetic Aperture Radar (SAR) Speckle noise Insitu Single-pointed Wavelet-based (ISPW) Method,
2015/11/20
Speckle noise caused by interference of electromagnetic waves complicates Synthetic aperture radar (SAR) images to be interpreted and further practical application, therefore reducing speckle noise an...
Stable Recovery of Sparse Overcomplete Representations in the Presence of Noise
Sparse representation Overcomplete Representation
2015/8/21
Overcomplete representations are attracting interest in signal processing theory, particularly due
to their potential to generate sparse representations of signals. However, in general, the problem o...
EFFECTS AND PERFORMANCE OF SPECKLE NOISE REDUCTION FILTERS ON ACTIVE RADAR AND SAR IMAGES
RADAR SAR Images Noise Speckle Filtering Adaptive Filter
2015/8/17
Reduction of speckle noise is one of the most important processes to increase the quality of radar coherent images. Image variances
or speckle is a granular noise that inherently exists in and degra...
Gain Fixed Pattern Noise Correction via Optical Flow
Digital camera CMOS image sensor Fixed pattern noise (FPN) Optical fl ow estimation gain FPN CDS
2015/8/17
Fixed pattern noise (FPN) or nonuniformity caused by device and interconnect parameter variations across an image sensor is a major source of image quality degradation especially in CMOS image sensors...
Analysis of 1/f noise in CMOS APS
bthreshold operation nonstationary 1/f noise model time domain noise analysis CMOS APS image sensor
2015/8/17
As CMOS technology scales, the effect of 1/f noise on low frequency analog circuits such as CMOS image sensors becomes more pronounced, and therefore must be more accurately estimated. Analysis of 1/f...
Analysis of Temporal Noise in CMOS APS
emporal noise subthreshold operation reset noise shot noise CMOS APS image sensor
2015/8/17
Temporal noise sets a fundamental limit on image sensor performance, especially under low illumination and in video applications. In a CCD image sensor, temporal noise is well studied and characterize...
Analysis of 1=f Noise in Switched MOSFET Circuits
1 noise CMOS image sensor nonstationary noise model periodically switched circuits phase noise ring oscillator time-domain noise analysis
2015/8/12
Analysis of 1 noise in MOSFET circuits is typically performed in the frequency domain using the standard stationary 1 noise model. Recent experimental results, however, have shown that the estimates u...
Analysis of Temporal Noise in CMOS Photodiode Active Pixel Sensor
CMOS APS image sensor reset noise shot noise subthreshold operation temporal noise time-domain noise analysis
2015/8/12
Temporal noise sets the fundamental limit on image sensor performance, especially under low illumination and in video applications. In a CCD image sensor, temporal noise is primarily due to the photod...
Decision noise:An explanation for observed violations of signal detection theory
Decision noise observed violations signal detection theory
2015/7/28
In signal detection theory (SDT), responses are governed by perceptual noise and a flexible decision criterion. Recent criticisms of SDT (see, eg, Balakrishnan, 1999) have identified violations of its...
Decision noise may mask criterion shifts:Reply to Balakrishnan and MacDonald (2008)
Decision criterion shifts Balakrishnan MacDonald
2015/7/28
J. D. Balakrishnan and J. A. MacDonald (2008) argue that RTbased measures of signal detection processes provide evidence against signal detection theory’s notion of a flexible decision criterion.
Lightning and other atmospheric noise interferes with Loran signal reception. This paper develops techniques to improve signal availability under these conditions.
With its wide bandwidth and large amplitude spikes,atmospheric noise can dominate the Loran band (90-110kHz). Data collection efforts over the spring and summer of 2005 in Norman, OK and over th...