A kind of control method of spectrum sensor
A technology of spectrum sensing and control method, which is applied in the field of communication equipment, and can solve the problems that the fixed attenuator of the radio frequency front end cannot be adjusted, and the adjustable dynamic range is small.
Active Publication Date: 2022-07-22
重庆会凌电子新技术有限公司
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0009] Therefore, the defect of the prior art is that a combination of a 3dB fixed attenuator and a 31dB / 1dB step attenuator is used to adjust the radio frequency signal and the intermediate frequency signal, and to control the attenuation of the input signal, and the fixed attenuator used in the radio frequency front end cannot be adjusted. , resulting in a smaller adjustable dynamic range of the product; in the prior art, the general AGC control is completed by the AGC control chip instead of the digital processor
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0029] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0030] like Figure 1-Figure 4 As shown, a control method of a spectrum sensor is used for a spectrum sensor. The spectrum sensor includes an ARM embedded device, and the ARM embedded device is connected with a memory; the memory is provided with a spectrum data buffer area and a queue buffer area. and statistics buffer;
[0031] The ARM embedded device obtains monitoring data and stores it in the memory, including the following steps:
[0032] Step A: the ARM embedded device obtains monitoring data, and if the monitoring data is spectrum data, then go to step B; if the monitoring data is IQ data or audio / demodulation data, go to step C; if the monitoring data is statistical data, go to step D ;
[0033] Step B: the ARM embedded device stores the current spectrum data in the spectrum data buffer area; replaces the spectrum data befor...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a control method of a spectrum sensor, comprising the following steps: step A: acquiring an input signal; step B: judging whether the power of the input signal is within the full scale, if so, go to step C, otherwise go to step I; step C: calculate the absolute value of the input signal amplitude; Step D: look up the table to obtain the corresponding power of the absolute value of the amplitude; Step E: judge whether the power is greater than or equal to the set power tolerance, if so, go to Step F; if not, go to Step H; Step F: complete the gain control, return to Step A; Step H: determine whether the attenuation value is the minimum, if so, go to Step F; if not, go to Step I; Step I: Control the attenuation from the minimum value, and gradually step by step to increase the attenuation value; step J: wait for the gain control to be completed; return to step B. The invention completes the gain control through a digital processor, and dynamically adjusts the radio frequency gain value by detecting the relationship between the amplitude of the input signal and the full scale.
Description
technical field [0001] The present invention relates to the technical field of communication equipment, in particular to a control method of a spectrum sensor. Background technique [0002] Application No. 201620944832.3, Authorization Announcement No.: CN 206041984 U; Invention Name: A Universal Microwave Frequency Converter; The patent discloses the following content: [0003] The invention discloses a general microwave frequency converter, comprising: [0004] The local oscillator power division amplifying module is composed of a power divider and an amplifier connected to the output end of the power divider. To the local oscillator terminals of the up-conversion mixer and down-conversion mixer; [0005] Downstream channel module, consisting of coupler, limiter, amplifier, 3dB fixed attenuator, switch selector, 31dB / 1dB step attenuator, amplifier, 3dB fixed attenuator, downconversion mixer, amplifier connected together in sequence It is connected in series to convert t...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H04B17/382H04B17/00
CPCH04B17/382H04B17/00
Inventor 刘微冯晓东李松代伟王曲
Owner 重庆会凌电子新技术有限公司