scholarly journals SDR Implementation of a Testbed for Real-Time Interference Detection With Signal Cancellation

IEEE Access ◽  
2018 ◽  
Vol 6 ◽  
pp. 20807-20821 ◽  
Author(s):  
Christos Politis ◽  
Sina Maleki ◽  
Juan Merlano Duncan ◽  
Jevgenij Krivochiza ◽  
Symeon Chatzinotas ◽  
...  
Keyword(s):  
Real Time ◽  
Interference Detection ◽  
Signal Cancellation

An Octree Method for Interference Detection in Computer Aided 3-D Packing

1994 ◽  
Author(s):  
Zuo Dai ◽  
Jianzhong Cha
Keyword(s):  
Real Time ◽  
Three Dimensional ◽  
Detection Algorithm ◽  
Time Response ◽  
Interference Detection ◽  
Computer Memory ◽  
Computational Accuracy ◽  
Data Space ◽  
Computer Aided ◽  
Packing Process

Abstract In simulating the three dimensional packing process with arbitrary shaped objects, the task of detecting interference between objects is important and very difficult. This paper, representing the three dimensional packing space and objects with an octree, presents an effective interference detection algorithm, which can overcome the performance shortcomings that the conventional methods have in terms of real-time response, computer memory and computational accuracy. By recording the distribution status of packing space in the “bits” of short integers, the data space can be compressed to 1/16 of that used by conventional algorithms.

Application of Collision and Interference Inspection Algorithm Based on Bounding Box in NC Machining Simulation

2011 ◽  
Vol 314-316 ◽  
pp. 501-505
Author(s):  
Jing Li ◽  
Yan Jiao ◽  
Bing Yi Li
Keyword(s):  
Real Time ◽  
Nc Machining ◽  
Interference Detection ◽  
Machining Simulation ◽  
Careful Inspection ◽  
Bounding Box ◽  
Nc Machining Simulation

Propose a collision and interference inspection algorithm based on bounding box, which can divide the collision and interference detection into rough, careful and precise inspection three steps. Rough inspection uses AABB bounding box, which can preclude the object that the interference wasn’t occurred obviously quickly and find out the potential intersectant object and area; careful inspection constructs the FDH bounding box to the object that has been confirmed interaction in the AABB bounding box; precise inspection detects and judges that the object occurs interference or not through the intersectant test of the triangular surfaces in the bounding box. This algorithm can simplify the calculating difficulty, improve the inspecting efficiency and meet the requirement to the inspecting speed and real-time in NC machining simulation.

Interference detection of flaws in periodic objects in real time with adjustable sensitivity

1999 ◽  
Vol 44 (10) ◽  
pp. 1242-1246
Author(s):  
A. M. Lyalikov ◽  
M. Yu. Serenko
Keyword(s):  
Real Time ◽  
Interference Detection

Some Recent Results in Quiescent Prominence Spectrometry

1979 ◽  
Vol 44 ◽  
pp. 41-47
Author(s):  
Donald A. Landman
Keyword(s):  
Real Time ◽  
Computer System ◽  
Spectral Response ◽  
Absolute Intensity ◽  
Solar Observatory ◽  
Target Size ◽  
Small Target ◽  
Signal Averaging ◽  
Quiescent Prominence

This paper describes some recent results of our quiescent prominence spectrometry program at the Mees Solar Observatory on Haleakala. The observations were made with the 25 cm coronagraph/coudé spectrograph system using a silicon vidicon detector. This detector consists of 500 contiguous channels covering approximately 6 or 80 Å, depending on the grating used. The instrument is interfaced to the Observatory’s PDP 11/45 computer system, and has the important advantages of wide spectral response, linearity and signal-averaging with real-time display. Its principal drawback is the relatively small target size. For the present work, the aperture was about 3″ × 5″. Absolute intensity calibrations were made by measuring quiet regions near sun center.

Video real-time imaging of artificial membranes during freeze-drying by cryo-electron microscopy

1988 ◽  
Vol 46 ◽  
pp. 16-17
Author(s):  
Alan S. Rudolph ◽  
Ronald R. Price
Keyword(s):  
Real Time ◽  
Self Assembly ◽  
Freeze Drying ◽  
Video Capture ◽  
Drying Process ◽  
Artificial Membranes ◽  
The Past ◽  
Cryo Electron Microscopy ◽  
Spherical Structures ◽  
Capture Techniques

We have employed cryoelectron microscopy to visualize events that occur during the freeze-drying of artificial membranes by employing real time video capture techniques. Artificial membranes or liposomes which are spherical structures within internal aqueous space are stabilized by water which provides the driving force for spontaneous self-assembly of these structures. Previous assays of damage to these structures which are induced by freeze drying reveal that the two principal deleterious events that occur are 1) fusion of liposomes and 2) leakage of contents trapped within the liposome [1]. In the past the only way to access these events was to examine the liposomes following the dehydration event. This technique allows the event to be monitored in real time as the liposomes destabilize and as water is sublimed at cryo temperatures in the vacuum of the microscope. The method by which liposomes are compromised by freeze-drying are largely unknown. This technique has shown that cryo-protectants such as glycerol and carbohydrates are able to maintain liposomal structure throughout the drying process.

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