Quadralinear time-frequency representations

نویسندگان

  • Jeffrey C. O'Neill
  • William J. Williams
چکیده

In time-frequency analysis there are four bilinear domains commonly used: time-frequency, ambiguity, temporal auto-correlation, and spectral auto-correlation. This paper introduces four new domains that are quadralinear in the signal. These four domains are each a function of three of the four variables used in the bilinear domains. Properties of these quantities are developed and an application is given for the design of adaptive time-varying kernels.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Random quadralinear forms and schur product on tensors.

In this work, we made progress on the problem that [ symbol: see text] is a Banach algebra under schur product. Our results extend Tonge's results. We also obtained estimates for the norm of the random quadralinear form A:l(r)(M) x l(p)(N) x l(q)(K) x l(s)(H)-->C, defined by: A(e(i), e(j), e(k), e(s))=a(ijks), where the (a(ijks))'s are uniformly bounded, independent, mean zero random variables....

متن کامل

Frequency Effects of Regular Past Tense Forms in English on Native Speakers’ and Second Language Learners’ Accuracy Rate and Reaction Time

There is substantial debate over the mental representation of regular past tense forms in both first language (L1) and second language (L2) processing. Specifically, the controversy revolves around the nature of morphologically complex forms such as the past tense –ed in English and how morphological structures of such forms are represented in the mental lexicon. This study focuses on the resul...

متن کامل

Optimal quadratic detection and estimation using generalized joint signal representations

Time-frequency analysis has recently undergone signiicant advances in two main directions: statistically optimized methods that extend the scope of time-frequency-based techniques from merely exploratory data analysis to more quantitative application, and generalized joint signal representations that extend time-frequency-based methods to a richer class of nonstationary signals. This paper fuse...

متن کامل

Quadrature Amplitude Modulated Digital Radio Transmission Modeling and Simulation

Computer aided design and computer aided modeling tools are becoming increasingly important in the design and performance evaluation of communication systems. In this work, we report on the computer simulation modeling study of terrestrial digital microwave radio transmission, using Block Oriented System Simulator package (BOSS). The work concentrates on semi-analytical error rate evaluation in...

متن کامل

A simple scheme for adapting time-frequency representations

Signal-dependent time-frequency representations, in which the kernel or window adapts to the signal being analyzed, perform much better than traditional time-frequency representations for many types of signals. Current signal-dependent time-frequency representations are blockoriented methods suited only for short-duration signals, and many are quite expensive computationally. We propose here a ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1995