Poisson pre-processing of nonstationary photonic signals: Signals with equality between mean and variance
نویسندگان
چکیده
منابع مشابه
Poisson pre-processing of nonstationary photonic signals: Signals with equality between mean and variance
Photonic signals are broadly exploited in communication and sensing and they typically exhibit Poisson-like statistics. In a common scenario where the intensity of the photonic signals is low and one needs to remove a nonstationary trend of the signals for any further analysis, one faces an obstacle: due to the dependence between the mean and variance typical for a Poisson-like process, informa...
متن کاملRobust Processing of Nonstationary Signals
Techniques for processing signals corrupted by non-Gaussian noise are referred to as the robust techniques. They have been established and used in science in the past 40 years. The principles of robust statistics have found fruitful applications in numerous signal-processing disciplines especially in digital image processing and signal processing for communications. Median, myriad, meridian, L ...
متن کاملSegmentation of nonstationary signals
Introduction In practice most signals can be regarded as nonstationary, i.e., as output of a linear but time variant system. Some kinds of signals, e.g., speech signals, to some extent can be interpreted as output of a linear system with abruptly changing parameters. Problems arising in processing signals with such kind of properties are estimation of change points and dealing with the problem ...
متن کاملDOA Estimation of Nonstationary Signals
In this Chapter, we discuss the direction finding problem of sources emitting or inducing nonstationary signals. The focus is on signals which are uniquely characterized by their instantaneous frequencies. Recognizing the quadratic time-frequency distributions as an effective tool to localize signal power in the time-frequency domain, we present nonstationary array processing in the context of ...
متن کاملContrast discrimination: Second responses reveal the relationship between the mean and variance of visual signals
To explain the relationship between first- and second-response accuracies in a detection experiment, Swets, Tanner, and Birdsall [Swets, J., Tanner, W. P., Jr., & Birdsall, T. G. (1961). Decision processes in perception. Psychological Review, 68, 301-340] proposed that the variance of visual signals increased with their means. However, both a low threshold and intrinsic uncertainty produce simi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: PLOS ONE
سال: 2017
ISSN: 1932-6203
DOI: 10.1371/journal.pone.0188622