Least-squares frequency analysis of unequally spaced data

1976/02/01 by N. R. Lomb, Nick Lomb · 5,764 citations
Computer Science · Engineering · Mathematics · #Algorithm #Blind Source Separation Techniques #Computational physics #Control Systems and Identification #Distortion (music) #Explained sum of squares #Gaussian #Gaussian noise #Least-squares function approximation #Mathematical analysis #Mathematics #Noise (video) #Non-linear least squares #Optics #Physics #Quantum mechanics #Regression analysis #Spectrum (functional analysis) #Statistics #Structural Health Monitoring Techniques #Total least squares

paper · doi:10.1007/bf00648343

published in Astrophysics and Space Science 39(2), 447-462 (Springer Science+Business Media)

openalex publication_date 1976/02/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06

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• Recovery from supercooling, freezing, and cryopreservation stress in larvae of the drosophilid fly, Chymomyza costata. [europepmc]
• Reward-related regions form a preferentially coupled system at rest. [europepmc]
• Rhythmicity of coastal marine picoeukaryotes, bacteria and archaea despite irregular environmental perturbations. [europepmc]
• PhysioZoo: A Novel Open Access Platform for Heart Rate Variability Analysis of Mammalian Electrocardiographic Data. [europepmc]
• Development and validation of warning system of ventricular tachyarrhythmia in patients with heart failure with heart rate variability data. [europepmc]
• Conservation and Diversification of Circadian Rhythmicity Between a Model Crassulacean Acid Metabolism Plant Kalanchoë fedtschenkoi and a Model C 3 Photosynthesis Plant Arabidopsis thaliana . [europepmc]
• Telling the Time with a Broken Clock: Quantifying Circadian Disruption in Animal Models. [europepmc]
• Fusing Mobile Phone Sensing and Brain Imaging to Assess Depression in College Students. [europepmc]
• Continuous Stress Detection Using Wearable Sensors in Real Life: Algorithmic Programming Contest Case Study. [europepmc]
• The seasonality of diarrheal pathogens: A retrospective study of seven sites over three years. [europepmc]
• Methods detecting rhythmic gene expression are biologically relevant only for strong signal. [europepmc]
• Daily Vaginal Microbiota Fluctuations Associated with Natural Hormonal Cycle, Contraceptives, Diet, and Exercise. [europepmc]
• Osmotic stress alters circadian cytosolic Ca 2+ oscillations and OSCA1 is required in circadian gated stress adaptation. [europepmc]
• An Optimal Time for Treatment-Predicting Circadian Time by Machine Learning and Mathematical Modelling. [europepmc]
• Physiological and immunological changes in the brain associated with lethal eastern equine encephalitis virus in macaques. [europepmc]
• Neonatal NIRS monitoring: recommendations for data capture and review of analytics. [europepmc]