Email alert
1996 Vol. 18, No. 4
Display Method:
1996, 18(4): 337-343.
Abstract:
Based on the unit quaternion decomposition of rotation matrix, this paper puts forward an algorithm to estimate motion parameters from the space position vectors of 3D feature points. Rotation matrix s representation with the unit quaternion has no s...
Based on the unit quaternion decomposition of rotation matrix, this paper puts forward an algorithm to estimate motion parameters from the space position vectors of 3D feature points. Rotation matrix s representation with the unit quaternion has no s...
1996, 18(4): 344-348.
Abstract:
In array signal processing, 2-D spatial-spectrum estimation is required to determine DOA of multiple signals. A circular array of sensors is found to possess several nice properties for DOA estimation of wide-band sources. C. Usha Padmini et al. (199...
In array signal processing, 2-D spatial-spectrum estimation is required to determine DOA of multiple signals. A circular array of sensors is found to possess several nice properties for DOA estimation of wide-band sources. C. Usha Padmini et al. (199...
1996, 18(4): 349-353.
Abstract:
Many high resolution methods such as MUSIC rely on a signal subspace decomposition, which is conventionally accomplished by an eigendecomposition. However an eigendecomposi-tion is very computationally intensive and difficult to implement. In this pa...
Many high resolution methods such as MUSIC rely on a signal subspace decomposition, which is conventionally accomplished by an eigendecomposition. However an eigendecomposi-tion is very computationally intensive and difficult to implement. In this pa...
1996, 18(4): 354-361.
Abstract:
In image restoration, the directions of the details are random. By standard median filter, the central pixel is processed as well as others, but in fact, the central pixel and it s neighbourhoods act as different role from others. To solve the above ...
In image restoration, the directions of the details are random. By standard median filter, the central pixel is processed as well as others, but in fact, the central pixel and it s neighbourhoods act as different role from others. To solve the above ...
1996, 18(4): 362-368.
Abstract:
An adaptive line spectral pair filter is derived from an adaptive lattice filter. A least-mean-square(LMS) type adaptive algorithm used to calculate directly the line spectral pair coefficients on a stage-by-stage is proposed. Experimental results sh...
An adaptive line spectral pair filter is derived from an adaptive lattice filter. A least-mean-square(LMS) type adaptive algorithm used to calculate directly the line spectral pair coefficients on a stage-by-stage is proposed. Experimental results sh...
1996, 18(4): 369-376.
Abstract:
This paper proposes new hierarchical structures for generating pseudo-random sequences and arrays. The principle of the structures is based on a new concept-multi-interleaving, the generalization of normal sequence decimation(sampling). The kernel of...
This paper proposes new hierarchical structures for generating pseudo-random sequences and arrays. The principle of the structures is based on a new concept-multi-interleaving, the generalization of normal sequence decimation(sampling). The kernel of...
1996, 18(4): 377-384.
Abstract:
The performances of DQDB MAN with multiple priorities are analyzed. The expressions of mean message sojourn time in the buffer are derived. Computer simulations are consistent with the theoretical results.
The performances of DQDB MAN with multiple priorities are analyzed. The expressions of mean message sojourn time in the buffer are derived. Computer simulations are consistent with the theoretical results.
1996, 18(4): 385-390.
Abstract:
Firtly, spectral characterization of Boolean functions satisfying k order propagation criterion is discussed; secondly, spectral characterization of Boolean functions satisfying k order strict avalanche criterion is described; finally, the generalize...
Firtly, spectral characterization of Boolean functions satisfying k order propagation criterion is discussed; secondly, spectral characterization of Boolean functions satisfying k order strict avalanche criterion is described; finally, the generalize...
1996, 18(4): 391-396.
Abstract:
This paper presents a deep researching of the microwave characteristics of a quantum well laser diode with the diode s microwave S parameters. By considering the characteristics and microwave packing effects of the device, a microwave equivalent circ...
This paper presents a deep researching of the microwave characteristics of a quantum well laser diode with the diode s microwave S parameters. By considering the characteristics and microwave packing effects of the device, a microwave equivalent circ...
1996, 18(4): 397-400.
Abstract:
A new method of extracting BJT dynamic model parameters is proposed by using the correlation between dynamic and static model parameters. Finally, the feasibility and utility of the method are demonstrated.
A new method of extracting BJT dynamic model parameters is proposed by using the correlation between dynamic and static model parameters. Finally, the feasibility and utility of the method are demonstrated.
1996, 18(4): 401-407.
Abstract:
It is shown from the accelerated lifetime test and noise measurement for integrated operational amplifiers that if their failure is caused by the drift of input bias current or input offset current, the drift is strongly correlated with 1/f noise cur...
It is shown from the accelerated lifetime test and noise measurement for integrated operational amplifiers that if their failure is caused by the drift of input bias current or input offset current, the drift is strongly correlated with 1/f noise cur...
1996, 18(4): 408-414.
Abstract:
This paper discusses the definitions and properties of two kinds of fundamental symmetric functions, which are based on AND-OR-NOT algebraic system and AND-Exclusive OR algebraic system, respectively. Based on it, the mapping trasformation methods be...
This paper discusses the definitions and properties of two kinds of fundamental symmetric functions, which are based on AND-OR-NOT algebraic system and AND-Exclusive OR algebraic system, respectively. Based on it, the mapping trasformation methods be...
1996, 18(4): 415-421.
Abstract:
The electromagnetic inverse scattering problem governed by the fiest kind of Fredholm integral equation is an ill-posed problem. By the aid of a series of unrelated illuminations we may obtain more information about the considered object and then ach...
The electromagnetic inverse scattering problem governed by the fiest kind of Fredholm integral equation is an ill-posed problem. By the aid of a series of unrelated illuminations we may obtain more information about the considered object and then ach...
1996, 18(4): 422-425.
Abstract:
A multimedia, imaging, coherent CO2 laser radar is developed and tested. The multimedia laser radar systems can simultaneously display the target image and report the range and velocity data of the imaged target by sound. This paper reports the desig...
A multimedia, imaging, coherent CO2 laser radar is developed and tested. The multimedia laser radar systems can simultaneously display the target image and report the range and velocity data of the imaged target by sound. This paper reports the desig...
1996, 18(4): 426-430.
Abstract:
This paper has modified the tradictional threshold decomposition technique which is introduced for the analysis and implementation of nonlinear filter. This modified technique called generalized threshold decomposition (GTD) is better than the tradit...
This paper has modified the tradictional threshold decomposition technique which is introduced for the analysis and implementation of nonlinear filter. This modified technique called generalized threshold decomposition (GTD) is better than the tradit...
1996, 18(4): 431-434.
Abstract:
A fast matching thinning algorithm based on tracing all contours is presented. It produces better image skeleton with faster processing speed. Experimental results show that this method is effective.
A fast matching thinning algorithm based on tracing all contours is presented. It produces better image skeleton with faster processing speed. Experimental results show that this method is effective.
1996, 18(4): 435-438.
Abstract:
A Ka-band phase-locked source (PLS) is analyzed and studied in detail. The stability of the millimeter PLL and the theory of phase compensation are discussed. In the practical scheme, the double PLL is applied, and the key components, such as the sta...
A Ka-band phase-locked source (PLS) is analyzed and studied in detail. The stability of the millimeter PLL and the theory of phase compensation are discussed. In the practical scheme, the double PLL is applied, and the key components, such as the sta...
1996, 18(4): 439-442.
Abstract:
A new method was presented to improve organic diode current-voltage (I-V) characteristics by using doped p-type material. The organic diodes with one-layer poly (3-alkylthiophene) (PAn=8T) and PAn=8T doped with various amounts of poly (N-vinylcarbazo...
A new method was presented to improve organic diode current-voltage (I-V) characteristics by using doped p-type material. The organic diodes with one-layer poly (3-alkylthiophene) (PAn=8T) and PAn=8T doped with various amounts of poly (N-vinylcarbazo...
1996, 18(4): 443-448.
Abstract:
A simulation method with SPICE for pH-ISFET based sensors and their circuits is presented. Using the parameters of built-in MOSFET in SPICE and some voltage sources, pH versus sensitivity, transient response and temperature characteristic of pH-ISFET...
A simulation method with SPICE for pH-ISFET based sensors and their circuits is presented. Using the parameters of built-in MOSFET in SPICE and some voltage sources, pH versus sensitivity, transient response and temperature characteristic of pH-ISFET...
