Dr. Chunyue Cheng Profile

Dr. Chunyue Cheng

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 13 December 2024 Paper

A comprehensive least squares calibration method for sideband separation receivers

Yunsheng Liu, Chunyue Cheng

Proceedings Volume 13495, 134950D (2024) https://doi.org/10.1117/12.3046433

KEYWORDS: Calibration, Matrices, Receivers, Condition numbers, Computer simulations, MATLAB, Analog to digital converters

Read Abstract +

This paper presents a novel comprehensive least squares calibration method based on digital sideband separation receivers. Addressing the issue encountered in existing traditional calibration methods, which necessitate measurements of both amplitude and phase at intermediate frequencies (IF), the proposed comprehensive least squares calibration method requires only the measurement of the amplitude and phase of the digital backend output for calibration. During digital signal processing of analog IF sampled outputs at the digital backend, a calibration coefficient matrix generated by the algorithm is introduced, and the amplitude and phase of the digital backend output signals are recorded. Amplitude and phase imbalances are solved using the least squares method, while the condition number of the calibration coefficient matrix is employed to determine whether preconditioning of ill-conditioned matrices is necessary. This process yields the amplitude and phase imbalances of the In-phase (I) and Quadrature-phase (Q) channels, which are utilized to compute compensation coefficients for calibration. Through MATLAB simulation, the feasibility of the comprehensive least squares algorithm is verified. Results demonstrate that sideband rejection ratios (SRR) of over 50 dB are achieved when amplitude imbalances range from -2.21 dB to 3.62 dB and phase imbalances range from 5° to 70°. This approach provides a promising pathway to enhance the operational performance of digital sideband separation receivers in practical applications.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years