delta sigma 代表作總集合

jswon

第一篇

Design of Multi-bit Sigma Delta Modulators for Digital Wireless Communications

Royal Institute of Technology, in partial fulfillment of the
requirements for the degree of Doctor of Technology.

The ever advance of CMOS digital circuit process leads to the trend of digitizing an
analog signal and performing digital signal processing as early as possible in a signal
processing system, which in turn leads to an increasing requirement on analog-to-digital
converter (ADC). A wireless transceiver is a such kind of signal processing system.
Conventional transceivers manipulate (filter, amplify and mix) the signal mostly
in analog domain. Since analog filters are difficult to design on-chip, the system integration
level is low. Modern transceivers shift many of these tasks to digital domain,
where the filtering and channel selection can be realized more accurately and more
compactly. However the price for the high integration level is the critical requirement
on the ADC, because the simplified analog part sends not only the weak signal but also
the unwanted strong neighboring channel to the ADC. In order to digitize the needed
signal in the presence of strong disturbances, a high dynamic-range and high-speed
ADC is needed.

第二篇 大師之作

High-Speed, Low-Power Sigma-Delta Modulators for RF

University of California, Berkeley

Author: Arnold R. Feldman

Chairman of Committee: Paul R. Gray

第三篇

Quadrature Bandpass Delta-Sigma

Auther: Stephen Andrew Jantzi

Graduate Department of Electrical and Computer Engineering University of Toronto

Abstract:

Considerable research effort in the field of microelectronics pushes towards the realization of
fully monolithic, chiefly digital, RF transceivers — with the ultimate objective being the
implementation of small, inexpensive, low-power communication devices that are robust,
testable, and capable of handling multiple communications standards. Two-path zero-IF
architectures and single-path bandpass-ΔΣ-based architectures strive to attain these dual goals,
but neither effectively achieves both.
This thesis proposes a low-IF receiver architecture, which, with modern quadrature imagereject
mixers and strategic IF placement, offers a viable solution for realizing digital, monolithic
receivers. A critical, and heretofore non-existing, component of such a system — and indeed of
any receiver that uses image-reject mixing to alleviate off-chip filtering requirements — is one
that efficiently performs bandpass A/D conversion on quadrature signals.

不是好文章不推薦
拿出壓箱寶
分享一下好東西

fanjx

路过，有空再说

fanjx

为啥不每篇论文一个附件

woainio

好像不错哦！

wangjin0215

qiao yi qiao

jswon

真是好東西阿 ....

soupdawn

谢谢楼主

kanteer

xia le zai shuo

kanteer

mei qian xia le , sigh

kanteer

hai you yi ge