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## Filter Results

Displaying Results 1 - 13 of 13
• ### Editorial

Publication Year: 2010, Page(s): 1
| | PDF (63 KB)

As is the way with many things, the performance of this journal is monitored and assessed by various metrics, and it is pleasing to note that almost all of these are improving steadily. The impact factor increased by 24% in 2009, giving the journal its highest figure (0.715) for at least 6 years. View full abstract»

• ### Sea trials of an underwater, ad hoc, acoustic network with stationary assets

Publication Year: 2010, Page(s):2 - 16
Cited by:  Papers (2)
| | PDF (1019 KB)

The diverse roles of deployable underwater assets have increased the need for ad hoc networking capability. This capability is defined as the ability to form acoustic communication links by deploying assets in a non-deterministic manner, without depending on a priori route and positioning information. Each asset represents a node in the network, and can act as a data source, sink or router,... View full abstract»

• ### Motion feature extraction for stepped frequency radar based on Hough transform

Publication Year: 2010, Page(s):17 - 27
Cited by:  Papers (5)
| | PDF (418 KB)

The high resolution range profile can be obtained through coherent pulse compression processing in every coherent processing interval (CPI) for stepped frequency radars (SFR). The radar observation time can be divided into multiple CPIs. By utilising the temporal information inherent to a sequence of these range profiles, a time-range image containing the target motion information can be synthesis... View full abstract»

• ### MIMO-OFDM radar for direction estimation

Publication Year: 2010, Page(s):28 - 36
Cited by:  Papers (20)
| | PDF (315 KB)

Multiple-input-multiple-output (MIMO) radar makes use of orthogonal signals to obtain the phase delay for each transmitting/receiving antenna pair, and thus increasing the accuracy of direction estimation. The previously proposed MIMO radar assumes narrowband signals that guarantee the waveform orthogonality during the signals- transmission, propagation and reception. However, a narrowband system ... View full abstract»

• ### Performance analysis of ordered-statistic greatest of-constant false alarm rate with binary integration for M-sweeps

Publication Year: 2010, Page(s):37 - 48
Cited by:  Papers (5)
| | PDF (844 KB)

The performance of the ordered-statistic greatest of (OSGO) constant false alarm rate (CFAR) scheme with binary integration for M non-coherent sweeps in Weibull background was investigated for homogeneous and non-homogeneous backgrounds, with an assumption of known shape parameter. This kind of processing is based on the fact that the clutter can be segmented in regions in many real radar s... View full abstract»

• ### Acquisition of satellite navigation signals using dynamically chosen measurements

Publication Year: 2010, Page(s):49 - 61
Cited by:  Papers (5)
| | PDF (811 KB)

A new approach to sequential acquisition of satellite navigation signals is presented where the collection of measurement statistics is steered dynamically during the acquisition process. The process consists of a fixed number of operation cycles during which the state of the receiver is maintained as a vector of conditional probabilities of acquisition hypotheses, each hypothesis being associated... View full abstract»

• ### Model-based sea mine classification with synthetic aperture sonar

Publication Year: 2010, Page(s):62 - 73
Cited by:  Papers (4)
| | PDF (1204 KB)

The quality and effectiveness of sensor information provided by mine-hunting autonomous underwater vehicles (AUVs) equipped with high-resolution sonars has improved drastically in recent years. In parallel, data rates have significantly increased resulting in information overload. Automatic target recognition (ATR) is regarded as a solution for this problem. This study describes a specific ATR tec... View full abstract»

• ### Extending Loffeld's bistatic formula for the general bistatic SAR configuration

Publication Year: 2010, Page(s):74 - 84
Cited by:  Papers (17)
| | PDF (689 KB)

This study derives an accurate bistatic point target reference spectrum based on a zeroth-order polynomial model. The spectrum contains only two hyperbolic square root terms that are very analogous in form to the analytical monostatic spectrum. The new formulation can be considered as an improvement of the Loffeld's bistatic formula (LBF) and allows it to handle a wider range of bistatic configura... View full abstract»

• ### Experimental research of unsupervised Cameron/maximum-likelihood classification method for fully polarimetric synthetic aperture radar data

Publication Year: 2010, Page(s):85 - 95
Cited by:  Papers (2)
| | PDF (4680 KB)

In this study, experimental research on classification is applied to fully polarimetric data in X-band from China. Considering the amplitude and phase error between H and V channels in the system, the authors firstly correct the error in original data. The authors also deduce the formula of Cameron's classification method for the real data in our study. Then Cameron's method is used to initially c... View full abstract»

• ### Automatic algorithm for inverse synthetic aperture radar images recognition and classification

Publication Year: 2010, Page(s):96 - 109
Cited by:  Papers (5)  |  Patents (2)
| | PDF (883 KB)

The authors propose an algorithm for automatic aircraft categories that is models classification from inverse synthetic aperture radar (ISAR) images that use pulse reflection shape and Doppler shifts of parts of aircraft that are in any maneuver that introduces rotation to the target. The authors artificially generated five different categories of ISAR aircraft using computer simulations and teste... View full abstract»

• ### Problem of signal synchronisation in space-surface bistatic synthetic aperture radar based on global navigation satellite emissions - experimental results

Publication Year: 2010, Page(s):110 - 125
Cited by:  Papers (7)
| | PDF (1844 KB)

This study presents the synchronisation problem in space-surface bistatic synthetic aperture radar (SS-BSAR) system. Global Navigation Satellite Systems (GNSS) are considered as transmitters of opportunity. It highlights various important issues of synchronisation, specifically related to SS-BSAR utilising GLONASS as the transmitter. Experimental testing of the synchronisation algorithm is descr... View full abstract»

• ### Stealth technology for wind turbines

Publication Year: 2010, Page(s):126 - 133
Cited by:  Papers (17)  |  Patents (1)
| | PDF (578 KB)

Currently, a large proportion of proposed UK wind farms have either concerns raised at the pre-planning stage or formal objections made by radar operators on the basis of the potential for wind turbines to cause interference to radar systems. The current generation of on and off-shore three-bladed horizontal axis wind turbines have radar signatures consistent with their often very large physical s... View full abstract»

• ### Huber-based unscented filtering and its application to vision-based relative navigation

Publication Year: 2010, Page(s):134 - 141
Cited by:  Papers (3)
| | PDF (411 KB)

A new algorithm called Huber-based unscented filtering (UF) is derived and applied to estimate the precise relative position, velocity and attitude of two unmanned aerial vehicles in the formation flight. The relative states are estimated using line-of-sight measurements between the vehicles along with acceleration and angular rate measurements of the follower. By making use of the Huber technique... View full abstract»

## Aims & Scope

IET Radar, Sonar & Navigation covers the theory and practice of systems involving the processing of signals for radar, radiolocation, radionavigation and surveillance purposes.

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IET Research Journals
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