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T. K. Sarkar, X. Yang

Research output: Contribution to journalArticlepeer-review


The author is wrong-in assuming that the algorithm in [5] are the same algorithms that were published earlier in [2]. The algorithm in [2] is the conjugate gradient a la "Fletcher Reeves" whereas the algorithm in [5] is a modified version of the algorithm proposed by Towsend and Johnson [6]. To an interested reader, there are many papers in the mathematical literature which elaborate on the different versions of the conjugate gradient algorithm for nonlinear optimization problems. In [6], the difference between the Fletcher algorithm [2] and the algorithm used in [5] is outlined.

Original languageEnglish (US)
Pages (from-to)93-94
Number of pages2
JournalSignal Processing
Issue number1
StatePublished - May 1990

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Software
  • Signal Processing
  • Computer Vision and Pattern Recognition
  • Electrical and Electronic Engineering

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