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The notion of gain and phase margin is based upon the gain expression for a negative feedback amplifier given by = +, where A FB is the gain of the amplifier with feedback (the closed-loop gain), β is the feedback factor, and A OL is the gain without feedback (the open-loop gain). The gain A OL is a complex function of frequency, with both ...
Phase margin and gain margin are two measures of stability for a feedback control system. They indicate how much the gain or the phase of the system can vary before it becomes unstable. Phase margin is the difference (expressed as a positive number) between 180° and the phase shift where the magnitude of the loop transfer function is 0 dB.
Randomly varying channel gains such as fading are taken into account by adding some margin depending on the anticipated severity of its effects. The amount of margin required can be reduced by the use of mitigating techniques such as antenna diversity or multiple-input and multiple-output (MIMO). A simple link budget equation looks like this:
A gain greater than one (greater than zero dB), that is, amplification, is the defining property of an active device or circuit, while a passive circuit will have a gain of less than one. [4] The term gain alone is ambiguous, and can refer to the ratio of output to input voltage (voltage gain), current (current gain) or electric power (power ...
A company's earnings before interest, taxes, depreciation, and amortization (commonly abbreviated EBITDA, [1] pronounced / ˈ iː b ɪ t d ɑː,-b ə-, ˈ ɛ-/ [2]) is a measure of a company's profitability of the operating business only, thus before any effects of indebtedness, state-mandated payments, and costs required to maintain its asset base.
Recent market gains can be attributed to the outlook for earnings growth. And some of that expected earnings growth can be attributed to what’s arguably the most unexpected development in the ...
In business, Gross Margin Return on Inventory Investment (GMROII, also GMROI) [1] is a ratio which expresses a seller's return on each unit of currency spent on inventory.It is one way to determine how profitable the seller's inventory is, and describes the relationship between the profit earned from total sales, and the amount invested in the inventory sold.
Using gross margin to calculate selling price Given the cost of an item, one can compute the selling price required to achieve a specific gross margin. For example, if your product costs $100 and the required gross margin is 40%, then Selling price = $ 100 1 − 40 % = $ 100 0.6 = $ 166.67 {\displaystyle {\text{Selling price}}={\frac {\$100}{1 ...