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Problems associated with cell biochemistry are nowadays of general concern. In particular, much attention is being paid to the problem of changes in cytosolic ATP Levels. ATeam, a genetically encoded fluorescence resonance energy transfer (FRET)-based biological indicator, can monitor the fluorescence emission ratio against ATP concentration. Up to now, change curve has always acted as a bridge between...
This work focuses on the capacity analysis of molecular communication (MC) channel where the information is encoded in the number of the released molecules. By introducing molecule life expectancy equaling to a symbol interval, the channel is considered to be memoryless. The properties of the capacity-achieving input of this channel is deduced under the constraint of the peak released molecules at...
High-power pulses with edges rising in tens of nanoseconds can be directly produced using a fast linear transformer driver (FLTD). The use of FLTDs facilitates the driving of various high-power electron-beam diodes through vacuum-or magnetically insulated transmission lines (MITLs) and consequently makes radiation simulation sources relatively compact. This paper investigates and optimizes the conformations...
For atmospheric links, the free space optical communication is challenged by the effects of turbulence. Wave-front aberration and power scintillation of the signal light are the main factors which lead to the degradation of system performance. In this paper, the bit-error-rate performance of atmospheric coherent laser receiver with binary phase shift keying modulation is performed. Beside the turbulence...
The LADAR(Laser Detection and Ranging) occupies an important position in the laser guidance technology, completing mosaic of LADAR image and achieving LADAR image of big scene is important significance for the laser guidance technology. SIFT algorithm can extract image feature points effectively, and realize feature matching through these feature points precisely, Then using the RANSAC method can...
Imaging laser Lidar process is analyzed in this paper, and a large FOV non-scanning imaging laser Lidar equation suitable for received energy calculation is proposed. Every parameters in this equation have distinct physical meaning. These parameters can be obtained by experiments, without experience estimate, or by exist literature material. By Lidar equation analyses, a conclusion that three parameters,...
Slit Streak Tube Imaging Lidar (STIL) is a promising imaging system as its high frame rate and good image quality. As its important applications, the depth under the water to detect a underwater target near the coast is less than 20m. It can effectively indemnify the safety of ships. We use a Slit Streak Tube Imaging Lidar, including a laser whose wavelength is 532nm and the energy of one pulse is...
A means of target surface reflectivity measurement is proposed in this paper. This means simulates the detection process of laser radar system whose emission direction and detection direction are parallel. By using a 532nm pulse laser as the source, several construction materials' reflectivity are measured in a serial of experiments. The reflect intensity at different deflection angle of the materials...
In recent years, areas such as 3G and their applications are expanding. As a result, it makes requirements for high-speed wireless communication increasingly urgent. LTE (Long Term Evolution) project uses OFDM (Orthogonal Frequency Division Multiplexing) and MIMO (Multiple-Input Multiple-Out-put) technology as its sole criterion for the evolution of wireless networks to improve and enhance the 3G...
Femtocell is one of the most important parts in the future cellular system such as LTE. But the interference problem would be very serious because femtocell works on the same frequency resource as macro-cell system. Considering the femtocell would induce interference between neighbor femtocells and macro-cell users which is very complicated, we proposed a novel scheme for femtocell to avoid any potential...
Synthetic Aperture Radar (SAR) can acquire the ocean wave spectrum in the wide-range area, and it can recognize the complicated space structure of the ocean wave. However, because the wavelength of SAR is long, its space resolution is not enough to analyze the micro-scale wave of the ocean surface. In the paper, Streak Tube Imaging Lidar (STIL) is presented firstly to collect the 4-D image (3-D range...
The quantum genetic algorithm is a fast algorithm for searching global optimal solution of a function, being proposed in recent years. The algorithm introduces the method of quantum, which makes the algorithm has high parallelism in solving problems. So the algorithm can be used to the quick searching. In this paper, the algorithm is introduced to target seeking of the ladar imagery. Through theoretical...
The anode-cathode (A-K) gap closure process of a rod-pinch diode is investigated. The influence of the beam's self-magnetic field on the motion of anode and cathode plasmas in the Magnetically Limited (ML) phase is analyzed theoretically. The electron pinching process is simulated using PIC (Particle-in-Cell) code. It is shown that stable bipolar flow was formed in the ML phase, the anode and cathode...
We modify the spin-image matching algorithm to recognize targets in range images. It not only resolves the rotation-invariance problem existing in forward detection of laser radar (Ladar), but also meets a rapid target recognition requirement.
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