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1. WO2018133332 - VOLTAGE STANDING WAVE RATIO DETECTION METHOD AND DEVICE FOR POINT OF INTERFACE

Publication Number WO/2018/133332
Publication Date 26.07.2018
International Application No. PCT/CN2017/091044
International Filing Date 30.06.2017
IPC
H04B 1/00 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/-H04B13/123; Details of transmission systems not characterised by the medium used for transmission
CPC
G01R 27/06
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
27Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
02Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
04in circuits having distributed constants ; , e.g. having very long conductors or involving high frequencies
06Measuring reflection coefficients; Measuring standing-wave ratio
H04B 1/0017
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
0003Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
0007wherein the AD/DA conversion occurs at radiofrequency or intermediate frequency stage
0017Digital filtering
H04B 1/006
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
005adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
0053with common antenna for more than one band
006using switches for selecting the desired band
H04B 1/04
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
02Transmitters
04Circuits
H04B 1/126
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
06Receivers
10Means associated with receiver for limiting or suppressing noise or interference
12Neutralising, balancing, or compensation arrangements
123using adaptive balancing or compensation means
126having multiple inputs, e.g. auxiliary antenna for receiving interfering signal
H04B 2001/0416
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
02Transmitters
04Circuits
0408with power amplifiers
0416having gain or transmission power control
Applicants
  • 深圳国人通信股份有限公司 SHENZHEN GRENTECH CORPORATION LIMITED [CN]/[CN]
Inventors
  • 李勇军 LI, Yongjun
  • 吴四维 WU, Siwei
Agents
  • 深圳市盈方知识产权事务所(普通合伙) IPINFO & LAWS OFFICE
Priority Data
201710044354.X19.01.2017CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) VOLTAGE STANDING WAVE RATIO DETECTION METHOD AND DEVICE FOR POINT OF INTERFACE
(FR) PROCÉDÉ DE DÉTECTION DE RAPPORT D'ONDE STATIONNAIRE DE TENSION ET DISPOSITIF POUR POINT D'INTERFACE
(ZH) 多系统接入平台电压驻波比检测方法和装置
Abstract
(EN)
The present invention relates to a voltage standing wave ratio detection method and device for a point of interface. The method comprises the following steps: coupling bandwidth signals; selecting, from the signals, a forward coupling signal having a frequency band to be measured and outputting the same; performing band-pass filtering processing on the forward coupling signal, to obtain a corresponding narrowband signal; selecting the narrowband signal and outputting the same; performing detection on the narrowband signal to form a voltage signal; performing amplification and filtering on the voltage signal; performing analog-to-digital conversion on the amplified and filtered voltage signal; looking up the digital voltage signal in a preset power table of narrowband signals, to calculate a forward power value; selecting a reverse coupling signal and outputting the same, repeating the foregoing steps to obtain a reverse power value, and performing calculation on the basis of the forward power value and the reverse power value to obtain a voltage standing wave ratio; and polling the next forward coupling signal and reverse coupling signal having frequency bands to be measured, to obtain a corresponding voltage standing wave ratio. The present invention can detect a voltage standing wave ratio of a wideband antenna in sections, achieving high integration and having a low cost.
(FR)
La présente invention concerne un procédé de détection de rapport d'onde stationnaire de tension et un dispositif pour un point d'interface. Le procédé comprend les étapes suivantes : le couplage de signaux de bande passante ; la sélection, à partir des signaux, d'un signal de couplage vers l'avant ayant une bande de fréquence à mesurer et son émission ; la réalisation d'un traitement de filtrage passe-bande sur le signal de couplage vers l'avant, pour obtenir un signal à bande étroite correspondant ; la sélection du signal à bande étroite et son émission ; la réalisation d'une détection sur le signal à bande étroite pour former un signal de tension ; la réalisation d'une amplification et d'un filtrage sur le signal de tension ; la réalisation d'une conversion analogique-numérique sur le signal de tension amplifié et filtré ; la recherche du signal de tension numérique dans une table de puissance prédéfinie de signaux à bande étroite, pour calculer une valeur de puissance directe ; la sélection d'un signal de couplage inverse et son émission, la répétition des étapes précédentes pour obtenir une valeur de puissance inverse, et la réalisation d'un calcul sur la base de la valeur de puissance directe et de la valeur de puissance inverse pour obtenir un rapport d'onde stationnaire de tension ; et l'interrogation du signal suivant de couplage vers l'avant et le signal de couplage inverse ayant des bandes de fréquence à mesurer, afin d'obtenir un rapport d'onde stationnaire de tension correspondant. La présente invention peut détecter un rapport d'onde stationnaire de tension d'une antenne à large bande dans des sections, obtenant une intégration élevée et ayant un faible coût.
(ZH)
本发明涉及一种多系统接入平台电压驻波比检测方法和装置,该方法包括以下步骤:耦合宽带信号;选通其中一个待测频带的前向耦合信号进行输出;对前向耦合信号进行带通滤波处理,得到对应的窄带频带信号;选通窄带频带信号进行输出;对窄带频带信号进行检波形成电压信号;对电压信号进行放大滤波;对放大滤波后的电压信号进行模数转换处理;将数字化的电压信号与预置窄带频带信号的功率表进行对比计算得到前向功率值;选通反向耦合信号进行输出,重复步骤得到反向功率值,根据前向功率值和反向功率值计算得到电压驻波比;轮询下一个待测频带的前向和反向耦合信号得到相应的电压驻波比。本发明可实现宽带天线分段电压驻波比的检测,集成度高,成本低。
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