Passive, bistatic radar offers an attractive method for remotely detecting and imaging targets without the requirement of a dedicated transmitter. Passive radar systems are usually cheaper than their active counterparts, which easily allows for multi-sensor networks. Furthermore, passive radar systems are difficult to detect and jam. With these advantages come several challenges, however. Bista...

In this paper, we describe the hardand software of a new low-cost infrared-optical pose-tracking system for room-sized virtual environments. The system consists of 4-8 shutter-synchronized 1394cameras with an optical bandpass filter and infrared illuminator. All image-processing is done in software on an attached workstation. Preliminary results indicate low latency (20-40ms), minimal jitter (R...

The feasibility of using GPS as a bistatic radar illuminator for the purposes of air target detection is examined. The power budget analysis is first performed assuming the use of a single satellite, but is followed by a discussion of the expected improvements when multiple satellites are employed. The analysis includes the effect of GPS signal strength dynamic range, also known as the ‘near-fa...

We present a low cost, hybrid active/passive 3D scanning system based on an off-the-shelf camera, a laser stripe illuminator and a turntable. The system combines the good accuracy of active triangulation approaches with the flexibility of self-calibration based approaches. System operation is based on the construction of a single view of a virtual surface of revolution, from which camera calibr...

In this paper, we proposed a method for configuring each component of a gel documentation system for the miniaturization and penetration of the system. To miniaturize the UV illuminator part, the minimum type of UVB lamp was adopted along with ballasts that can drive four lights. As the imaging system, a conventional compact digital camera, which has a similar performance to that of a DSLR, was...

This is a very useful hook and can be strongly recommended to all would-be purchasers of a microscope. It consists of chapters on the simple and compound microscope, on the stands, on objectives and eye-pieces, on various accessories, such as substage condensers, the Abbe illuminator, diaphragms, polarising apparatus, reflectors, light modifiers, &c., &c. We are glad to see the high opinion the...