Digital signal processing (DSP) is the numerical manipulation of signals, usually with the intention to measure, filter, produce or compress continuous analog signals.umerical methods require a digital signal, such as those produced by an analog-to-digital converter (ADC). The processed result might be a frequency spectrum or a set of statistics. But often it is another digital signal that is converted back to analog form by a digital-to-analog converter (DAC).
1 On average, the cost to repair a sidewalk could be anywhere from $4 to as much as $10 per square foot. 2  If a higher quality finish is used, the price can reach as high as $15 per square foot. They can charge differently depending on their location as well as the experience and knowledge that they offer. 2  On average, the cost to repair a sidewalk could be anywhere from $4 to as much as $10 per square foot.
For example, if a companyâs fixed costs per job are $300, and their variable costs are $5 per square foot, and a job is a 50 square foot sidewalk repair, then the effective total price would be $300 + 50*$5 = $550, or $11 per square foot.he cost of concrete leveling is broken down into two components: fixed costs and variable costs. This post is about the cost of concrete leveling for exterior jobs such as sidewalk repair and driveway repair.