This paper demonstrates the feasibility of using differential interferometric synthetic aperture radar (DInSAR) for subsidence monitoring over the underground mining sites in New South Wales, Australia. The SAR data acquired in dual-frequency, Cand L-band, of microwave portion of electromagnetic spectrum by ERS-1/2, Radarsat-1 and JERS-1 satellites have been examined. The issues of decorrelatio...

A campaign was conducted from 23 July to 5 August 2010 to measure atmospheric precipitable water vapor (PWV) using five Global Positioning System (GPS) receivers, stationed at four different locations in Jakarta and Bogor, western Java, Indonesia. Radiosondes were launched at an interval of 6 h to validate the GPS-derived PWV data. The validation resulted in a root mean square error of 2 to 3 m...

In the indoor and outdoor transition area, due to its poor availability in a complex positioning environment, BDS/GPS SPP (single-point by combining BeiDou Navigation Satellite System (BDS) Global Positioning (GPS)) is unable provide an effective service. view of accuracy low sampling rate gross error, such as non-line-of-sight error UWB (Ultra-Wide-Band), making results poor, BDS/GPS/UWB tight...

This work presents, for the first time, analysis of occurrence ionospheric irregularities during geomagnetic storms at Tucumán, Argentina, a low latitude station in Southern American longitudinal sector (26.9°S, 294.6°E; magnetic 15.5°S) near southern crest equatorial ionization anomaly (EIA). Three occurred on May 27, 2017 (a month rates spread-F), October 12, 2016 transition from to high spre...

The Shuttle Radar Topography Mission (SRTM) Digital Terrain Elevation Data (DTED) are used with the consensus view that it has a minimum vertical accuracy of 16 m absolute error at 90% confidence (Root Mean Square Error (RMSE) of 9.73 m) world-wide. However, vertical accuracy of the data decreases with increase in slope and elevation due to presence of large outliers and voids. Therefore, studi...

4G will not facilitate the design of cell phones. Compared to today's 3G, future 4G multistandard, multi-band cellular phones have to cover an increasing number of wireless standards. These standards include GSM, CDMA, WCDMA, 3GPP LTE/4G, WIMAX and even MIMO WIMAX AND MIMO LTE/4G at up to 25 frequency bands, and includes connectivity systems like WLAN and Bluetooth, and support navigation syste...

In this paper dual band aperture coupled Circularly Polarized (CP) C-Slotted antenna with a small frequency ratio exited through a single feed is proposed for GPS application. The optimized design of CSlot antenna has been validated using IE3D Electromagnetic wave simulator. The C-slot is asymmetrical about the centre of the antenna. The antenna parameters can be optimized by changing the physi...

In this paper, we propose and research a novel miniaturized composite right/left handed transmission line (CRLH TL) cell based on revised complementary split ring resonators (CSRRs) for the first time. Novel CRLH TL cell is demonstrated with lower transmission and reflection zeros from electrical and electromagnetic (EM) simulation results. Negative refractive index of CRLH effect is successful...