impact pile driving is a multi-component problem which is associated to multi-directional ground vibrations. at first, vibration is transferred from the hammer to the pile and then to the common interface of pile and soil. this is then transferred to the environment and has great impact on the adjacent structures, causing disturbance to residents and also damage to the buildings. it is of high ...

in this paper, a ground early warning receiver is introduced and explained for the reception and monitoring of signal from a space-borne synthetic aperture radar. this receiver can be used for various electronic warfare applications and implemented in two sectors of time parameter detector and frequency parameter detector. it can measure power, bandwidth, central frequency, pulse width, pulse r...

The COPE field campaign operated from the 3rd July to the 20 th August 2013, with ground operations based in Davidstow Cornwall where the X-band polarimetric Doppler radar was located. Figure 1 shows the location of Davidstow, the Chilbolton S-band polarimetric Doppler radar and the C-band radars within the Met Office network. The Met Office Cobbacombe C-band radar was operational although not ...

The WSR-57 radar a t Sacramento provides an opportunity to observe mountain effects on precipitation and on radar echo patterns. Radar patterns representing a wide range of weather situations are described and interpreted in light of concurrent gage precipitation measurements. The frequent underestimation by radar of rainfall on windward slopes is attributed to the small drop size and low forma...

The problem of recognition of extended targets such as convoys of ground vehicles by radar is discussed. The paper focuses on target recognition during the search and track radar mode, i.e., using a real aperture mode. Radar with multi-channel array antenna is assumed. Such radar produces multi-channel echo data and offers the potential of space and space-time signal processing. Generalised spa...

The application of the Ground Penetrating Radar (GPR) method which was carried out in Prambanan District, Sleman, Special Region Yogyakarta to determine geometry slip plane potential landslides. This can see contrast between landslide and material that is above plane. Measurements were made on field "A" consisting 6 tracks "B" 7 tracks. cross section radargram shows a penetration depth about - ...

Generating a multi-sensor precipitation product over radar gap area is the objective of the present study. A merging approach is developed to improve Satellite-based Precipitation Estimates (SPE) by merging with ground-based Radar Rainfall (RR) estimates because remote satellites are the only source that can collect information from areas where are inaccessible by ground-based radar and/or rain...

Design and Feasibility Testing for a Ground-based, Three-dimensional, Ultra-high-resolution, Synthetic Aperture Radar