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1 This article develops the mathematical models needed to describe the key issues in using an array of antennas for receiving spacecraft signals for DSN applications. The detrimental effects of nearby interfering sources, such as other spacecraft transmissions or natural radio sources within the array's field of view, on signal-to noise ratio (SNR) are… (More)
In this article, we establish a general theoretical framework for optimal signal combining using the eigen theory approach. We also describe how the eigen approach can be applied to current and future arraying implementation.
This article presents a study of a locally adaptive vector quantization (LAVQ) algorithm for data compression. This algorithm provides high-speed one-pass compression and is fully adaptable to any data source and does not require a priori knowledge of the source statistics. Therefore, LAVQ is a universal data compression algorithm. The basic algorithm and… (More)