张贤达（1946年5月-2020年3月2日），毕业于加利福尼亚大学圣迭戈分校，信号处理领域著名科学家，清华大学自动化系原教师。
张贤达教授是中国最早开展非高斯信号处理、盲信号处理和通信信号处理的著名学者之一。他长期工作在教学、科研第一线，深耕于信号处理的研究和教学工作。
2020年3月2日，张贤达因病医治无效，在北京逝世，享年74岁。
1970年毕业于中国人民解放军军事电信工程学院（现西安电子科技大学），1982年获哈尔滨工业大学硕士学位，1987年于日本东北大学获工学博士学位，1990年8月－1991年8月美国University of California at San Diego博士后。
工作经历1992年9月起任西安电子科技大学教授，1993年被批准为博士生导师。1999年任西安电子科技大学电子工程学院特聘教授。现任西安电子科技大学教授、博士生导师，清华大学兼职教授和博士生导师。
学术兼职1991年1月至今 在IEEE Trans. Signal Processing担任Reviewer；
1991年1月至今 在全国信号处理学会担任理事；
1991年1月至今 在信号处理担任编委；
1993年3月至今 在IEEE担任高级会员；
2001年5月至今 在IEEE Signal Processing Letters担任Reviewer；
2002年1月至今 在IEEE Transactions on Wireless Communications担任Reviewer；
2002年5月至今 在IEEE Trans. Information Theory担任Reviewer；
2004年1月至今 在IEEE Transactions on Image Processing担任Reviewer。
现代信号处理， 硕士和博士研究生。
通信信号处理， 硕士和博士研究生。
[1] 通信信号处理
盲多用户检测，多载波CDMA系统，智能天线，MIMO系统，信道估计。
[2] 雷达信号处理
阵列信号处理，特征提取，目标识别。
[3] 现代信号处理
非平稳信号处理(含小波分析)，高阶统计分析，阵列信号处理，循环平稳信号分析，现代谱估计与建模，信号检测，Monte Carlo信号处理，自适应滤波。
[4] 盲信号处理
盲反卷积与盲均衡，盲信号分离(独立分量分析与非线性主分量分析)，盲波束形成。主要贡献
科研项目[1] 音频信号的盲分离与半盲分离研究 国际合作 2002年9月至今。
[2] 未来移动通信系统关键理论与技术研究 国家自然科学基金重大项目 2004年1月至今。
[3] 特征提取的Monte-Carlo方法及其在盲信号分离与盲多用户检测中的应用 国家自然科学基金 2004年1月至今。
[4] 基于高分辩雷达的目标特征提取和识别技术研究 航天支撑技术基金项目 2004年1月至今。
主要论著[1] 张贤达. 现代信号处理(第二版). 清华大学出版社，2002。
[2] 张贤达,保铮. 通信信号处理. 国防工业出版社，2000。
[3] 张贤达,保铮. 非平稳信号分析与处理. 国防工业出版社，1998。
[4] 张贤达. 信号处理中的线性代数. 科学出版社，1997。
[5] 张贤达. 时间序列分析--高阶统计量方法. 清华大学出版社，1996。
[6] 张贤达. 现代信号处理. 清华大学出版社，1995。
[7] Xiao-Long Zhu, Xian-Da Zhang, Ji-Ming Ye. Natural gradient-based recursive least- squares algorithm for adaptive blind source separation. Science in China, Series F，vol.47, pp.55-65, 2004.
[8] Feng DZ, Zhang XD, Bao Z.. Neural network learning for principal component analysis: A multistage decomposition approach. Chinese J Electronics，vol.13, No.1, 1-7, 2004.
[9] Chen JF, Zhang XD, Wu YT. An algorithm for joint estimating range, DOA and frequency of near-field sources. Chinese J Electronics，vol.13, No.1, 19-23, 2004.
[10] Heng Yang and Xian-Da Zhang. A fast maximum likelihood sequence decoding method for multi-carrier DS-CDMA using frequency spread coding. IEEE Transactions on Wireless Communications，vol.3, no.3, pp.770-780, May, 2004.
[11] Shun-Tian Lou and Xian-Da Zhang. Fuzzy-based learning rate determination for blind source separation. IEEE Transactions on Fuzzy Systems，vol.11, no.3, pp.375-383, June 2003.
[12] Xi-Kai Zhao and Xian-Da Zhang. Peak-to-average power ratio analysis in multicarrier DS-CDMA. IEEE Transactions on Vehicular Technology，vol.52, no.3, pp.561-568, May 2003.
[13] Zhang Xianda, Zhu Xiaolong, Bao Zheng. Grading learning for blind source separation. Science in China, Series F，vol.46, no.1, 31-44, 2003.
[14] Da-Zheng Feng, Xian-Da Zhang, Zheng Bao. An efficient multistage decomposition approach for independent components. Signal Processing，vol.83, no.1, p.181-197, 2003
[15] Peng-Long Shui, Zheng Bao, Xian-Da Zhang. Two-channel adaptive biorthogonal filterbanks. Signal Processing，vol.82, no.6, pp.881-893, Jun 2002.
[16] 张贤达，朱孝龙，保铮. 基于分阶段学习的盲信号分离. 中国科学(E辑)，vol.32, no.5, pp.693-703, 2002.
[17] Xian-Da Zhang and Wei Wei. Blind adaptive multiuser detection based on Kalman filtering. IEEE Transactions on Signal Processing，vol.50, no.1, pp.87-95, Jan. 2002.
[18] Xiao-Long Zhu and Xian-Da Zhang. Adaptive RLS algorithm for blind source separation using a natural gradient. IEEE Signal Processing Letters，vol.9, no.12, 432-435, Dec. 2002.
[19] Yu Shi and Xian-Da Zhang. A Gabor atom network for signal classification with application in radar target recognition. IEEE Transactions on Signal Processing，vol.49, no.12, pp.2994-3004, Dec. 2001.
[20] Xian-Da Zhang, Yu Shi and Zheng Bao. A new feature using selected bispectra for signal classification with application in radar target recognition. IEEE Transactions on Signal Processing，vol.49, no.9, pp.1875-1885, Sept. 2001.
[21] Peng-Lang Shui, Zheng Bao and Xian-Da Zhang. M-band compactly supported orthogonal symmetric interpolating scaling functions. IEEE Transactions on Signal Processing，vol.49, no.8, pp.1704-1713, Aug. 2001.
[22] Yang-Wang Fang, Li-Cheng Jiao, Xian-Da Zhang and Jin Pan. On the convergence of Volterra filter equalizers using a Pth-order inverse approach. IEEE Transactions on Signal Processing，vol.49, no.8, pp.1734-1744, Aug. 2001.
[23] Da-Zheng Feng, Zheng Bao and Xian-Da Zhang. Cross-associative neural network for SVD of non-squared data matrix in signal processing. IEEE Transactions on Neural Networks，vol.12, no.5, pp.1215-1221, Sept. 2001.
[24] Da-Zheng Feng, Zheng Bao and Xian-Da Zhang. A bi-iteration instrumental variable noise-subspace tracking algorithm. Signal Processing，vol.81, pp.2215-2221, 2001.
[25] Da-Zheng Feng, He-Qing Zhang, Xian-Da Zhang and Zheng Bao. An extended recursive least-squares algorithm. Signal Processing，vol.81, no.5, pp.1075-1081, 2001.
[26] Xi-Kai Zhao, Xian-Da Zhang. Performance analysis on a class of inverse filter criteria for blind deconvolution. Chinese Journal of Electronics，10 (4): 435-438, Oct. 2001.
[27] Lei Zhou, Xiao-Bo Zhou, Xian-Da Zhang. Pilot symbol assisted channel estimation based on fuzzy system. Chinese Journal of Electronics，9 (4): 442-444 Oct. 2000.
[28] Da-Zheng Feng, Zheng Bao and Xian-Da Zhang. Modified RLS algorithm for unbiased estimation of FIR system with input and output noise. Electronics Letters， vol.36, no.3, pp.273-274, 2000.
[29] Yu Shi and Xian-Da Zhang. Kalman-filtering-based angular velocity estimation using infrared attitude information of spacecraft. Optical Engineering，vol.39, no.2, pp.551-557, 2000.
[30] Xiang Yu and Xian-Da Zhang. A new blind identification method for DS-CDMA systems with antenna array under multipath fading. IEEE J. on Selected Areas in Communications，vol.17, no.12, pp.2154-2161, Dec. 1999.
[31] Xian-Da Zhang, Yu Song and Yan-Da Li. Adaptive Identification of Nonminimum Phase ARMA Models Using Higher-Order Cumulants alone. IEEE Transactions on Signal Processing，vol.44, pp.1285-1288, 1996.
[32] Chuang Bai Xiao, Xian-Da Zhang and Yan-Da Li. A method for AR order determination of an ARMA process. IEEE Transactions on Signal Processing，vol.44, pp.2900-2903, 1996.
[33] Xian-Da Zhang and Ying-Chang Liang. Prefiltering-based ESPRIT for estimating parameters of sinusoids in non-Gaussian ARMA noise. IEEE Transactions on Signal Processing，vol.43, pp.349-353, 1995.
[34] Xian-Da Zhang and Yuan-Sheng Zhang. FIR System Identification Using Higher-Order Cumulants alone. IEEE Transactions on Signal Processing，vol.42, pp.2854-2858, 1994.
[35] Xian-Da Zhang and Yan-Da Li. Harmonic retrieval in mixed Gaussian and non-Gaussian ARMA noises. IEEE Transactions on Signal Processing，vol.42, pp.3539-3543, 1994.
[36] Xian-Da Zhang, Ying-Chang Liang and Yan-Da Li. A hybrid approach to harmonic retrieval in non-Gaussian noise. IEEE Transactions on Information Theory，vol.40, pp.1220-1226, 1994.
[37] Xian-Da Zhang and Yuan-Sheng Zhang. Determination of the MA order of an ARMA process Using Sample Correlations. IEEE Transactions on Signal Processing，vol.41, pp.2277-2280, 1993.
[38] Xian-Da Zhang and Yuan-Sheng Zhang. Singular Value Decomposition-based MA order Determination of non-Gaussian ARMA models. IEEE Transactions on Signal Processing，vol.41, pp.2657-2664, 1993.
[39] Xian-Da Zhang and Yan-Li Zhou. A novel recursive approach to estimating MA parameters of causal ARMA models from cumulants. IEEE Transactions on Signal Processing，vol.40, pp.2870-2873, 1992.
[40] Xian-Da Zhang and Jie Cheng. High resolution two-dimensional ARMA spectral estimation. IEEE Transactions on Signal Processing，vol.39, pp.765-770, 1991.
[41] Xian-Da Zhang. On the estimation of two-dimensional moving average parameters. IEEE Transactions on Automatic Control，vol.36, pp.1196-1199, 1991.
[42] Xian-Da Zhang. Two-dimensional harmonic retrieval and its time-domain analysis technique. IEEE Transactions on Information Theory，vol.37, 1185-1188, 1991.
[43] Xian-Da Zhang and Da-Yong Cui. Performance analysis of Kimura and Honokiu2019s hybrid approach to 2-D spectral estimation. IEEE Transactions on, Speech, Signal Processing，vol.38, pp.191-193, 1990.
[44] Xian-Da Zhang and Hiroshi Takeda. An approach to time series analysis and ARMA spectral estimation. IEEE Transactions on Acoustics, Speech, Signal Processing，vol.35, pp.1303-1313, 1987.
[45] Xian-Da Zhang and Hiroshi Takeda. An order recursive generalized least-squares algorithm for system identification. IEEE Transactions on Automatic Control，vol.30, pp.1224-1227, 1985.
2020年3月2日14时17分在北京逝世，享年74岁。
