ULTRA WIDEBAND DECIMETER AND CENTIMETER WAVELENGTH MIXER WITH CLOSE FREQUENCY RANGES OF THE INPUT INFORMATION SIGNAL AND THE INTERMEDIATE FREQUENCY SIGNAL

2020 ◽  
Author(s):  
P. S. Tarasov ◽  
◽  
A. Yu. Yuhlin ◽  
◽  
Keyword(s):  
Intermediate Frequency ◽  
Ultra Wideband ◽  
Frequency Signal ◽  
Input Information ◽  
Information Signal ◽  
Close Frequency

The Design and Realization of a Spectrum Acquisition Unit Based on the MSP430F149 MCU

2012 ◽  
Vol 246-247 ◽  
pp. 230-234
Author(s):  
Jun Jun Song ◽  
Bin Ren ◽  
Song Lei
Keyword(s):  
Satellite Communications ◽  
Intermediate Frequency ◽  
Performance Level ◽  
Spectrum Analyzer ◽  
Test Results ◽  
Communication Quality ◽  
Frequency Signal ◽  
Frequency Monitoring ◽  
Primary Means ◽  
Signal Monitoring

In the field of satellite communications, spectrum analyzer is one of the primary means of frequency monitoring, and it plays an important role in ensuring communication quality. According to the principle of the superheterodyne spectrum analyzer, the design and realization of a spectrum acquisition unit based on MSP430F149 MCU is given in this paper. Comparing the test results with those of the Agilent N9020 spectrum analyzer, the comparison shows that in the intermediate frequency signal monitoring, the spectrum analyzer designed in this paper has reached the current performance level of the mainstream spectrum analyzer.

Research on the Intermediate Frequency Receiver of L-Band

2014 ◽  
Vol 1056 ◽  
pp. 193-196
Author(s):  
Shuang Zhao ◽  
Yun Qing Liu
Keyword(s):  
High Frequency ◽  
High Reliability ◽  
Rapid Development ◽  
Intermediate Frequency ◽  
Low Power Consumption ◽  
Frequency Signal ◽  
High Frequency Signal ◽  
Wireless Receiver ◽  
Rf Receiver ◽  
L Band

With the rapid development of wireless communications, there are more and more ​​stringent requirements on the wireless receiver, such as low power consumption, high reliability, low price, as well as smaller size. The design of RF receiver is the key to achieve this goal. According to the actual needs of the project, a double conversion IF receiver is designed. At first, the high frequency signal is changed to a higher IF, and the second output is a zero-IF signal. Experimental results show that the receiver has 100dB gain and a flat bandwidth.

Research and realization of GPS intermediate frequency signal sampler based on USB

2013 ◽  
Vol 26 (10) ◽  
pp. 883-888
Author(s):  
Qingxi Zeng ◽  
Qing Wang ◽  
Yingjie Yang ◽  
Yang Song
Keyword(s):  
Intermediate Frequency ◽  
Frequency Signal

scholarly journals Immunity of coherent stroboscopic processing system of ultra wideband signals during synchronous mode

2019 ◽  
Vol 30 ◽  
pp. 15022
Author(s):  
Oleg Pak ◽  
Vladimir Zakharchenko
Keyword(s):  
Phase Modulation ◽  
Second Harmonic ◽  
Theoretical Calculations ◽  
Radio Pulse ◽  
Processing System ◽  
Intermediate Frequency ◽  
Ultra Wideband ◽  
Gating System ◽  
Synchronous Mode ◽  
Wideband Signals

Analyze of the radio pulse stroboscopic schema work in “synchronous” mode was made at clock interval synchronization by the second harmonic of intermediate frequency. It’s introduced relationships describing the input radio signal’s amplitude relationship during the phase modulation transforming in time during work the converter in synchronous mode. The results of semi natural modeling of the radio pulse gating system qualitative agreement with theoretical calculations.

scholarly journals WEIGHTLESS PROCESSING OF QUANTIZED SIGNAL LOAD

T-Comm ◽  
2021 ◽  
Vol 15 (1) ◽  
pp. 48-51
Author(s):  
Vladimir I. Filatov ◽  
◽  
Alexander S. Nekrasov ◽  
Irina A. Rudzit ◽  
Daria A. Kondrashova ◽  
...  
Keyword(s):  
Signal Processing ◽  
Information Processing ◽  
Detection Problem ◽  
Quality Of Information ◽  
Input Information ◽  
Information Signal ◽  
Hardware Complications ◽  
Unit Density ◽  
Required Quality

Optimal methods for processing input information signals often involve operations, implementation of which is extremely difficult and significantly increases the requirements for automated information processing systems. However, the use of various approaches to solving this problem has led to the appearance of synthesized methods for processing a sequence of signals that allow solving the detection problem with the required quality without significant hardware complications. The article considers a method for weightless processing packets of input quantized signals, which allows us to evaluate the potential (limit) quality of information processing and quantify the amount of loss of this quality when excluding certain operations. The considered method is given with a reasonable structure of implemented devices in practice. A special feature of weightless signal processing is analysis of increasing unit density in a fixed interval of close positions, which gives information about the possible presence of an information signal. To identify this factor, two logical criteria are used, such as “m out of m” and “n out of m”, which will be described in this article.

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