Target Altitude Extraction for Multibeam Surveillance Radar in Multipath Environmental Condition
نویسندگان
چکیده
منابع مشابه
Instantaneous altitude estimation of maneuvering target in over-the-horizon radar exploiting multipath Doppler signatures
Over-the-horizon radar systems are capable of localizing targets in range and azimuth but are unable to achieve reliable altitude estimation. Past work has shown that the time-varying Doppler signatures of micro-multipath signals provide rich information for reliable estimation of altitude changes. In this paper, we develop a new technique for the estimation of instantaneous altitude of maneuve...
متن کاملTarget detection in urban scenarios using netted radar multipath signals
In urban environments, multipath and obscuration by buildings decreases the ability of radar systems to detect targets and also increases the number of false alarms caused by image artefacts. To reduce these problems this paper proposes a network of low-cost easilydeployable radar sensors that are set up in a multiple-input multiple-output (MIMO) radar configuration. An analysis is given of the...
متن کاملRobust altitude estimation for over-the-horizon radar using a state-space model for multipath fading
In previous work, a matched-field estimate of aircraft altitude from multiple over-the-horizon radar dwells was presented. This approach exploits the altitude dependence of direct and surface reflected returns off the aircraft and the relative phase changes of these micro-multipath arrivals across radar dwells. Since this previous approach assumed high dwell-to-dwell predictability, it is sensi...
متن کاملHigh resolution range profile based extraction of radar target length
Radar target identification using high resolution range profile (HRRP), the target length is an important feature due to that it can reduce the time of identification and mitigate noise redundancy. Traditional threshold methods with the different operators are highly sensitive to noise. In this paper, we proposed an adaptive difference operator for target length feature extraction from HRRP. Ex...
متن کاملImage Mosaicking for Low-Altitude Aerial Surveillance
Overhead surveillance and mapping is becoming increasingly important in a number of areas with commercial, economic, and military applications. Effective algorithms for mosaicking are essential in building maps of large-scale areas; further, key steps in the mosaicking process such as feature matching and verification have implications in the rapidly growing area of robotic navigation and local...
متن کاملذخیره 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: The Journal of Korean Institute of Electromagnetic Engineering and Science
سال: 2007
ISSN: 1226-3133
DOI: 10.5515/kjkiees.2007.18.10.1203