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1993 Vol. 15, No. 2
Display Method:
1993, 15(2): 113-120.
Abstract:
By applying switch-signal theory, the interaction between MOS transmission switching transistor and current signal in current-mode circuits is analyzed, and the theory of transmission current-switches which is suitable to current-mode CMOS circuits i...
By applying switch-signal theory, the interaction between MOS transmission switching transistor and current signal in current-mode circuits is analyzed, and the theory of transmission current-switches which is suitable to current-mode CMOS circuits i...
1993, 15(2): 121-127.
Abstract:
DHT of length plq (p is odd. q is arbitrary) is turned into p-DHT's of length q and some additional operations while the additional operations only invol ves the computation of cos-DFT and sin-DFT with length p. If the length of a DHT is p1l1psls2l)(...
DHT of length plq (p is odd. q is arbitrary) is turned into p-DHT's of length q and some additional operations while the additional operations only invol ves the computation of cos-DFT and sin-DFT with length p. If the length of a DHT is p1l1psls2l)(...
1993, 15(2): 128-132.
Abstract:
An IOAOSA (Integrated Optical Acoustooptic Spectrum Analyzer) system consists of semiconductor laser, acoustooptic modulator, geodesic lenses, and CCD detector array. The optical signal is converted to electrical signal by CCD array of the IOAOSA pro...
An IOAOSA (Integrated Optical Acoustooptic Spectrum Analyzer) system consists of semiconductor laser, acoustooptic modulator, geodesic lenses, and CCD detector array. The optical signal is converted to electrical signal by CCD array of the IOAOSA pro...
1993, 15(2): 133-139.
Abstract:
A statistical optimization method of integrated circuit design is proposed. This model summerizes optimal centering design of yield maximization, optimal tolerance, tuning design and maximum production profit design. The equivalence between this meth...
A statistical optimization method of integrated circuit design is proposed. This model summerizes optimal centering design of yield maximization, optimal tolerance, tuning design and maximum production profit design. The equivalence between this meth...
1993, 15(2): 140-146.
Abstract:
The exact numbers of n-variable Boolean functions with correlational immunity are initially found for the cases of weight 4(or 2n-4) and 6(or 2n-6). The known lower bounds for the enumeration of such Boolean functions are also improved greatly by the...
The exact numbers of n-variable Boolean functions with correlational immunity are initially found for the cases of weight 4(or 2n-4) and 6(or 2n-6). The known lower bounds for the enumeration of such Boolean functions are also improved greatly by the...
1993, 15(2): 147-154.
Abstract:
A new approach, based on the fast Walsh transform and the waveform relaxation technique, is first presented to analyze the lossy coupled transmission lines with arbitrary terminations. The simulation accuracy of the method can be greatly improved, th...
A new approach, based on the fast Walsh transform and the waveform relaxation technique, is first presented to analyze the lossy coupled transmission lines with arbitrary terminations. The simulation accuracy of the method can be greatly improved, th...
1993, 15(2): 155-169.
Abstract:
The TE and TM mode field expressions and their general coupled characteristic equations of the dielectric coaxial resonators (any number of interfaces) placed between two parallel conducting plates or placed in shield are derived. Particularly, the d...
The TE and TM mode field expressions and their general coupled characteristic equations of the dielectric coaxial resonators (any number of interfaces) placed between two parallel conducting plates or placed in shield are derived. Particularly, the d...
1993, 15(2): 170-173.
Abstract:
The impedance matching technique for twin-toroid latching ferrite phase shifter using grooved waveguide is studied. The transfer matrices used for impedance matching are given. Experimental results shown that tbe given technique is suitable for engin...
The impedance matching technique for twin-toroid latching ferrite phase shifter using grooved waveguide is studied. The transfer matrices used for impedance matching are given. Experimental results shown that tbe given technique is suitable for engin...
1993, 15(2): 174-180.
Abstract:
More stable and accurate recursive formulas and a computing procedure to calculate scattering coefficients for a multilayered sphere are proposed. The procedure involves three logarithmic derivatives of Ricatti-Bessel functions 'n(z)/n(z), 'n(z)/n(z)...
More stable and accurate recursive formulas and a computing procedure to calculate scattering coefficients for a multilayered sphere are proposed. The procedure involves three logarithmic derivatives of Ricatti-Bessel functions 'n(z)/n(z), 'n(z)/n(z)...
1993, 15(2): 181-186.
Abstract:
Tolerance synthesis techniques of array radiation pattern are investigated. The mathematical models for array radiation pattern optimization are given, and the methods for solving the problem of tolerance optimization are initiated. The physical mode...
Tolerance synthesis techniques of array radiation pattern are investigated. The mathematical models for array radiation pattern optimization are given, and the methods for solving the problem of tolerance optimization are initiated. The physical mode...
1993, 15(2): 187-190.
Abstract:
On account of narrow bandwidth, many applications of microstrip antennas are limited in great degree. How to widen its bandwidth is being concerned by lots of scholars at home and abroad. In this paper, resonant frequency of the deformed circular mic...
On account of narrow bandwidth, many applications of microstrip antennas are limited in great degree. How to widen its bandwidth is being concerned by lots of scholars at home and abroad. In this paper, resonant frequency of the deformed circular mic...
1993, 15(2): 191-195.
Abstract:
A new method for reconstructing lossy medium by regression circle technique is presented. In high frequency region, the locus of the reflection coefficient as a function of the wave number in the complex plane yields a circle, from which some propert...
A new method for reconstructing lossy medium by regression circle technique is presented. In high frequency region, the locus of the reflection coefficient as a function of the wave number in the complex plane yields a circle, from which some propert...
1993, 15(2): 196-200.
Abstract:
It is pointed out that methods usually used to measure and process S-parame-ters of reciprocal dissipative two-port networks can be used to any reciprocal lossless two-port networks. Therefore, the method of S-parameter measurement of these two kinds...
It is pointed out that methods usually used to measure and process S-parame-ters of reciprocal dissipative two-port networks can be used to any reciprocal lossless two-port networks. Therefore, the method of S-parameter measurement of these two kinds...
1993, 15(2): 201-203.
Abstract:
The influence of laser pulse energy, laser pulse width, switch materiai absorption coefficient, surface recombination bulk recombination and Auger recombination upon the response time of photoconductive switch has been analyzed by using the computer ...
The influence of laser pulse energy, laser pulse width, switch materiai absorption coefficient, surface recombination bulk recombination and Auger recombination upon the response time of photoconductive switch has been analyzed by using the computer ...
1993, 15(2): 204-207.
Abstract:
De Bruijn sequences are highly important nonlinear shift register sequences. The homogeneous complexity Ck() of degree of a De Bruijn sequence is defined and discussed. Its upper bound is given. The linear complexity and the quadratic complexity are ...
De Bruijn sequences are highly important nonlinear shift register sequences. The homogeneous complexity Ck() of degree of a De Bruijn sequence is defined and discussed. Its upper bound is given. The linear complexity and the quadratic complexity are ...
1993, 15(2): 208-211.
Abstract:
McEliece's public-key cryptosystem was constructed with the Goppa codes. This paper shows other linear block codes, i.e., BCH codes or RS codes, can also be used to construct secure McEliece s cryptosystem.
McEliece's public-key cryptosystem was constructed with the Goppa codes. This paper shows other linear block codes, i.e., BCH codes or RS codes, can also be used to construct secure McEliece s cryptosystem.
1993, 15(2): 212-218.
Abstract:
Based on circuitry of the long distance phase laser range finder with multi-frequency ranging, a new circuit for direct synthesis of frequency by means of a single crystal oscillator of high stability has been proposed Its advantages, performances an...
Based on circuitry of the long distance phase laser range finder with multi-frequency ranging, a new circuit for direct synthesis of frequency by means of a single crystal oscillator of high stability has been proposed Its advantages, performances an...
1993, 15(2): 219-224.
Abstract:
A new approach to get unilateral models for amplifiers is given. The transfer functions of such amplifiers are easily obtained by using the models. Compared with the traditional methods for determing transfer functions of amplifiers, such as the appr...
A new approach to get unilateral models for amplifiers is given. The transfer functions of such amplifiers are easily obtained by using the models. Compared with the traditional methods for determing transfer functions of amplifiers, such as the appr...
