Spectrum analyzer专利检索-频谱分析仪信号处理专利检索查询-专利查询网

Spectrum analyzer

阅读：427发布：2021-12-18

专利汇可以提供Spectrum analyzer专利检索，专利查询，专利分析的服务。并且A spectrum analyzer is provided in which a digital recirculating delay line memory is used in conjunction with a swept receiver to effect a time variant signal across a frequency range of interest. The swept receiver is fed analog signals for subsequent analog to digital conversion. Thereafter, a logic circuit simultaneously associated with a delay line memory, sweep receiver circuit and computer receives the converted digital signals. The logic circuit and an analog to digital converter are simultaneously controlled by a common clock. The logic circuit synchronizes the receiver sweep to the recirculating memory and the digital recirculating memory stores in digital format for future utilization the spectral characteristics of the frequency range of interest.，下面是Spectrum analyzer专利的具体信息内容。

权利要求

1. A spectrum analyzer comprising a swept receiver being fed analog electromagnetic signals of interest, said swept receiver being automatically tunable over a predetermined frequency range, means to convert the analog output signals from said swept receiver to representative digital signals, recirculating delay line means, a digital logic circuit receiving said representative digital signals from the analog to digital converting means for predetermined timed storage in said recirculating delay line means, common clock means for said analog to digital converting means and said digital logic circuit for synchronizing their operation and in turn that of said recirculating delay line means for predetermined time serial storage of the digital signals, a sweep circuit providing a predetermined sweep voltage signal for application to said swept receiver for automatic tuning thereof over said predetermined frequency range, and a digital computer programmed to transmit a predetermined timed signal by way of said digital logic circuit to said sweep circuit for initiation of said application of said predetermined sweep voltage signal to said swept receiver, said digital computer also being programmed to issue a command by way of said digital logic circuit to said recirculating delay line means to read out thereto the stored digital signals for further utilization thereof.

2. A spectrum analyzer as described in claim 1 further including a log amplifier interconnecting said swept receiver and said analog to digital receiver to provide a wide dynamic range.

3. A spectrum analyzer as described in claim 2 wherein said swept receiver is comprised of means receiving said analog electromagnetic signals, said means being automatically tunable over a predetermined frequency range upon the receipt of said sweep voltage signal from said sweep circuit a mixer interconnecting said tunable receiving means and said log amplifier, a voltage controlled local oscillator tunable over a predetermined frequency range also upon the receipt of said sweep voltage signal from said sweep circuit.

4. A spectrum analyzer as described in claim 3 including a driver receivinG said sweep voltage signal from said sweep circuit prior to the application to said tunable receiving means.

说明书全文

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Spectrum analyzer

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