A Digital Beamforming Method Based on Hilbert Transform

نویسندگان

چکیده

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

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

A Wideband digital Beamforming Method Based on Stretch Processing

The calculation of wideband digital beamforming using traditonal methods is so large that it is hard to realize in project. This paper describes a wideband digital beamforming method on the base of stretch processing for linear frequency modulated (LFM) waveforms. This method offers advantages that are moderate data rate for wideband signal processing by reducing the signal bandwidth greatly. I...

متن کامل

Comments on Hilbert Transform Based Signal Analysis

The use of the Hilbert transform for time/frequency analysis of signals is briefly considered. While the Hilbert transform is based on arbitrary continuous signals, most practical signals are digitially sampled and time-limited. To avoid aliasing in the sampling process the signals must also be bandlimited. It is argued that it is reasonable to consider such sampled signals as periodic (this is...

متن کامل

A Digital All-pass Filter Design Based on Discrete Hilbert Transform

This paper presents one method for designing all-pass filters which approximates a desired all band group delay. The method is based on the relation between the complex Cepstrum and a stable minimum-phase sequence. Given the desired group delay, the design procedure consists of the computation of the complex Cepstral coefficients in such a way that the denominator group delay is approximated in...

متن کامل

1991 Hilbert Transform Based Receiver

This paper describes a software based receiver post processor that corrects circularity and gain errors in coherent receivers. The receiver post processor additionally provides range gating capabilities, signal quality estimation, mixer non-linearity detection and various display functions. This paper will concentrate primarily on the identification of circularity errors by the receiver post pr...

متن کامل

An Effective Method on Reducing Measurement Noise Based on Hilbert-Huang Transform

For non-stationary signal in ultrasonic inspection, an effective denoising method based on Hilbert-Huang transform (HHT) is presented and a few key questions using the HHT method are discussed. The overall scheme of HHT includes two parts which are empirical mode decomposition (EMD) algorithm and a sum of intrinsic mode functions (IMF). Through the EMD process, individual IMF can be found. The ...

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

ژورنال

عنوان ژورنال: Hans Journal of Wireless Communications

سال: 2013

ISSN: 2163-3983,2163-3991

DOI: 10.12677/hjwc.2013.36027