Title:
試験測定装置及び入力信号デジタル化方法
Document Type and Number:
Japanese Patent JP6889523
Kind Code:
B2
Abstract:
A test and measurement instrument including a splitter (102) configured to split an input signal (104) into at least two split signals (106, 108), at least two harmonic mixers (110, 112) configured to mix an associated split signal (106, 108) with an associated harmonic signal (114, 118) to generate an associated mixed signal (116, 120), at least two digitizers (ADC) (130, 132) configured to digitize the associated mixed signal (116, 120), at least two MIMO polyphase filter arrays (200, 202) configured to filter the associated digitized mixed signal (134, 136) of an associated digitizer of the at least two digitizers, at least two pairs of band separation filters (204, 206, 208, 210) configured to receive the associated digitized mixed signals (y1, y2) from each of the MIMO polyphase filter arrays and output a low band of the input signal (xl, xL) and a high band of the input signal (xh~, xH~) based on a time different between the at least two digitizers (130, 132) and a phase drift of a local oscillator, a mixer to up-shift the high band of the input signal (xH~ to xh) and a combiner (226) configured to combine the low band of the input signal (xL) and the high band of the input signal (xh) to form a reconstructed input signal.
Inventors:
Joan Jay Picard
Kang Tan
Kang Tan
Application Number:
JP2016073627A
Publication Date:
June 18, 2021
Filing Date:
March 31, 2016
Export Citation:
Assignee:
TEKTRONIX,INC.
International Classes:
G01R13/20
Domestic Patent References:
| JP9510074A | ||||
| JP2012247423A | ||||
| JP201555634A |
Foreign References:
| US7053804 |
Other References:
Dan Knierim,“Ultra-Wide-Bandwidth Oscilloscope Architectures and Circuits”,2014 IEEE BIPOLAR/BICMOS CIRCUITS AND TECHNOLOGY MEETING (BCTM),2014年 9月28日,pp. 136-142,DOI: 10.1109/BCTM.2014.6981300
Shahrzad Jalali Mazlouman, Samad Sheikhaei, Shahriar Mirabbasi,“Digital Compensation Techniques for Frequency-Translating Hybrid Analog-to-Digital Converters”,IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT,2010年12月20日,Vol. 60, No. 3,pp. 758-767,DOI: 10.1109/TIM.2010.2045254
Shahrzad Jalali Mazlouman, Samad Sheikhaei, Shahriar Mirabbasi,“Digital Compensation Techniques for Frequency-Translating Hybrid Analog-to-Digital Converters”,IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT,2010年12月20日,Vol. 60, No. 3,pp. 758-767,DOI: 10.1109/TIM.2010.2045254
Attorney, Agent or Firm:
Yamaguchi International Patent Office