cascaded noise

См. также в других словарях:

• Noise figure — (NF) is a measure of degradation of the signal to noise ratio (SNR), caused by components in a radio frequency (RF) signal chain. The noise figure is defined as the ratio of the output noise power of a device to the portion thereof attributable… …   Wikipedia

• Noise (electronics) — Electronic noise [1] is a random fluctuation in an electrical signal, a characteristic of all electronic circuits. Noise generated by electronic devices varies greatly, as it can be produced by several different effects. Thermal noise is… …   Wikipedia

• ITU-R 468 noise weighting — The ITU R 468 weighting curve (originally defined in CCIR recommendation 468) is widely used when measuring noise in audio systems, especially in the UK, Europe, and former countries of the British Empire such as Australia and South Africa. It is …   Wikipedia

• Friis formulas for noise — The terms the Friis formula and Friis s formula (sometimes Friis formula), named after Harald T. Friis, can refer to either of two formulas used in telecommunications engineering. One relates to noise figure, and the other relates to noise… …   Wikipedia

• CNA — • Cascaded Network Architecture (Gegenteil von BNA) • Canadian Nuclear Association • Cosmic Noise Absorption ( > IEEE Standard Dictionary ) • Certified NetWare Administrator (Novell) • Communications Network Application …   Acronyms

• Digital filter — A general finite impulse response filter with n stages, each with an independent delay, di, and amplification gain, ai. In electronics, computer science and mathematics, a digital filter is a system that performs mathematical operations on a… …   Wikipedia

• Intel 8259 — The Intel 8259 is a family of Programmable Interrupt Controllers (PICs) designed and developed for use with the Intel 8085 and Intel 8086 8 bit and 16 bit microprocessors. The family originally consisted of the 8259, 8259A, and 8259B PICs, though …   Wikipedia

• PID controller — A block diagram of a PID controller A proportional–integral–derivative controller (PID controller) is a generic control loop feedback mechanism (controller) widely used in industrial control systems – a PID is the most commonly used feedback… …   Wikipedia

• Diode logic — (DL) or diode resistor logic constructs Boolean logic gates from diodes acting as electrically operated switches. While diode logic has the advantage of simplicity, the lack of an amplifying stage in each gate limits its application. Not all… …   Wikipedia

• Current mirror — A current mirror is a circuit designed to copy a current through one active device by controlling the current in another active device of a circuit, keeping the output current constant regardless of loading. The current being copied can be, and… …   Wikipedia

• Valve audio amplifier - technical — Circuitry and performance Characteristics of valves Valves are very high input impedance (near infinite in most circuits) and high output impedance devices. They are also high voltage / low current devices.While valves themselves are described… …   Wikipedia