Removal of Clutter by Using Wavelet Transform For Wind Profiler

نویسندگان

  • I. Kullayamma
  • Durga Rao
چکیده

Removal of clutter in the radar wind profiler is the utmost important consideration in radar. Wavelet transform is very effective method to remove the clutter. This paper presents a technique based on the wavelet transform to remove the clutter. In this technique we used Fourier transform and descrete wavelet transform after that applied inverse discrete wavelet transform for signal. These techniques applied for inphase and quadrature phase, total spectrum and single range gate. Very encouraging results got with this technique that have shown practical possibilities for a real time implementation and for applications related to frequency

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

Wavelet based methods for improved wind profiler signal processing

In this paper, we apply wavelet thresholding for removing automatically ground and intermittent clutter (airplane echoes) from wind profiler radar data. Using the concept of discrete multi-resolution analysis and non-parametric estimation theory, we develop wavelet domain thresholding rules, which allow us to identify the coefficients relevant for clutter and to suppress them in order to obtain...

متن کامل

Radar wind profiler signal characteristics during bird migration episodes

The Gabor transform is used to investigate non-stationary wind profiler radar signals, which are frequently occurring during the seasonal bird migration. It is shown that the Gabor phase space representation contains a wealth of information and can be effectively used to separate the atmospheric signal component from the clutter. The crucial role of the dwell time as one of the primary sampling...

متن کامل

Clear air boundary layer spaced antenna wind measurement with the Multiple Antenna Profiler (MAPR)

Spaced antenna (SA) wind measurement techniques are applied to Multiple Antenna Profiler (MAPR) data to evaluate its performance in clear air conditions. MAPR is a multiple antenna 915 MHz wind profiler developed at the National Center for Atmospheric Research (NCAR) and described in Cohn et al. (1997), designed to make high resolution wind measurements. Previous reported measurements with MAPR...

متن کامل

Operation of a Mobile Wind Profiler In Severe Clutter Environments

Wind profiling radars have been in use since the 1970s (Green et al. 1979). They are now being used with increasing frequency in operational meteorology under a wide range of conditions. One limitation to operation at many sites is contamination from ground and intermittent clutter and radio frequency interference (RFI). Currently, wind profiler radars must be deployed at locations with a minim...

متن کامل

Moving Object Segmentation in Video Using Stationary Wavelet Transform

Various video processing applications, such as tracking, requires low complexity and reliable segmentation of objects. Global motion and background clutter often acts as key constraints to perform reliable segmentation. In this paper, we propose a video segmentation algorithm for tracking application that handles these constraints by operating on high and low frequency wavelet bands simultaneou...

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 2012