نتایج جستجو برای: multi rate sampling frequency
تعداد نتایج: 1955852 فیلتر نتایج به سال:
A multi-mode terminal is required in order to offer users multiple communication services for ubiquitous communication and Software Defined Radio (SDR) technology has attracted considerable attention as a means of realizing a multi-mode terminal. In such a terminal, a multi-band receiver is required, since each communication service uses an individually specific frequency and bandwidth. It is a...
The discrete time systems process the data at more then one sampling rate is called multi-rate system. In this case the sampling rates of signals are unequal at various parts of the system. In all available communication channels achieving maximum signal transfer without any noise, the only frequency processor synchronized with the sampling rate. In this paper evaluate the differential delay of...
The Möbius function is utilised to propose a class of multi-channel, multi-sampling rate theorems. Our construction facilitates a parallel decomposition of the Fourier transform into an array of general integral transform operators. A practical example is discussed which employs a complex square wave biorthonormal basis.
Decomposition of multi-exponential and related signals is generalized as a filtering problem on a logarithmic time or frequency scale and FIR filters operating with logarithmically sampled data are proposed to use for its implementation. The filter algorithms and types are found for various time-domain and frequencydomain mono-components. It is demonstrated that the ill-posedness in the multi-c...
This paper is concerned with the analyses of multi-rate controllers, which update the controller output faster than the measurement sampling frequency by a factor of N. The controlled systems is continuous, and the discrete time controller is obtained as its zero order hold equivalent. After deriving a set of equations necessary for analysis and design of multi-rate systems, the open loop chara...
Decomposition of multi-exponential and related signals is generalized as an inverse filtering problem on a logarithmic time or frequency scale, and discrete-time filters operating with equally spaced data on a logarithmic scale (geometrically spaced on linear scale) are proposed for its implementation. Ideal prototypes, algorithms and types of filters are found for various timeand frequency-dom...
This is a non-refereed presentation that examines the use of quadrature bandpass sampling (QBPS), reviewing several of the results recently presented in [1]. Like bandpass sampling (BPS), this technique allows signals with a high frequency carrier to be sampled at a rate not less than twice the signal bandwidth. The actual available frequencies for sampling are shown to many more than for bandp...
Wideband spectrum sensing is becoming increasingly important to cognitive radio (CR) systems for exploiting spectral opportunities. This paper introduces a novel multi-rate sub-Nyquist spectrum sensing (MS) system that implements cooperative wideband spectrum sensing in a CR network. MS can detect the wideband spectrum using partial measurements without reconstructing the full frequency spectru...
The problem of designing a stabilizing feedback controller in the presence saturating actuators and multi-rate (asynchronous) aperiodic state measurements is studied. Specifically, we consider scenario which plant states are collected at end sporadic asynchronous fashion. A hybrid used to perform fusion sampled different times. In between sampling events, behaves as copy provides control signal...
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