Approximating a bandlimited function using very coarsely quantized data: A family of stable sigma-delta modulators of arbitrary order

نویسنده

  • Ron DeVore
چکیده

برای دانلود رایگان 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

Approximating a Bandlimited Function Using Very Coarsely Quantized Data: Improved Error Estimates in Sigma-delta Modulation

This paper concerns fine analytical error estimates in analog-to-digital conversion of bandlimited functions using the method of sigma-delta modulation (also called Σ∆ quantization). This method has found widespread usage in practice due to several advantages in its implementation compared to conventional methods (see [1, 11]). A recent mathematical treatment of this problem appears in [3]. Bel...

متن کامل

Novel Schemes for Sigma-Delta Modulation: From Improved Exponential Accuracy to Low-Complexity Design

The central theme of this thesis is one-bit quantization of bandlimited signals via Sigma-Delta modulation. In this commonly used analog-to-digital conversion method, the signal of interest is represented by a ±1-valued sequence that is computed recursively from regular samples of the signal via a difference equation. The key feature of the method is that the low frequency content of the quanti...

متن کامل

Time-Mode Signal Quantization for Use in Sigma-Delta Modulators

The rapid scaling in modern CMOS technology has motivated the researchers to design new analog-to-digital converter (ADC) architectures that can properly work in lower supply voltage. An exchanging the data quantization procedure from the amplitude to the time domain, can be a promising alternative well adapt with the technology scaling. This paper is going to review the recent development in t...

متن کامل

Decrease in Hardware Consumption and Quantization Noise of Digital Delta-Sigma Modulators and Implementation by VHDL

A new structure is presented for digital delta-sigma modulator (DDSM). Novel architecture decreases hardware consumption, output quantization noise and spurs in Comparison to previous architectures. In order to reduce the delay, power consumption and increase maximum working frequency, the pipelining technique and the carry skip adder are used. Simulation proposed architecture shows that the qu...

متن کامل

Coarse Quantization for Random Interleaved Sampling of Bandlimited Signals

The compatibility of unsynchronized interleaved uniform sampling with Sigma-Delta analog-to-digital conversion is investigated. Let f be a bandlimited signal that is sampled on a collection of N interleaved grids {kT + Tn}k∈Z with offsets {Tn}n=1 ⊂ [0, T ]. If the offsets Tn are chosen independently and uniformly at random from [0, T ] and if the sample values of f are quantized with a first or...

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

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2003